--- title: "CVE-2015-8709\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2015-8709?format=md keywords: index, follow --- # CVE-2015-8709 Publication date 12 December 2015 Last updated 4 July 2026 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **7.0 · High** [Score breakdown](https://ubuntu.com/security/CVE-2015-8709?format=md#impact-score) Toggle side navigation ## Description kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states "there is no kernel bug here. ### From the Ubuntu Security Team Jann Horn discovered a ptrace issue with user namespaces in the Linux kernel. The namespace owner could potentially exploit this flaw by ptracing a root owned process entering the user namespace to elevate its privileges and potentially gain access outside of the namespace. (http://bugs.launchpad.net/bugs/1527374, CVE-2015-8709) [Read the notes from the security team](https://ubuntu.com/security/CVE-2015-8709?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux-aws-fips | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy FIPS Updates | Not affected | | 20.04 LTS focal FIPS | Not affected | | 18.04 LTS bionic FIPS | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-azure-fips | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy FIPS Updates | Not affected | | 20.04 LTS focal FIPS | Not affected | | 18.04 LTS bionic FIPS | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gcp-fips | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy FIPS Updates | Not affected | | 20.04 LTS focal FIPS | Not affected | | 18.04 LTS bionic FIPS | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux | 25.04 plucky | Not affected | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not affected | | 17.10 artful | Not affected | | 17.04 zesty | Not affected | | 16.10 yakkety | Fixed 4.8.0-28.30 | | 16.04 LTS xenial | Fixed 4.4.0-51.72 | | 15.10 wily | Fixed 4.2.0-22.27 | | 15.04 vivid | Fixed 3.19.0-75.83 | | 14.04 LTS trusty | Fixed 3.13.0-103.150 | | 12.04 LTS precise | Not affected | | linux-armadaxp | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Ignored end of life | | linux-aws | 25.04 plucky | Not affected | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not affected | | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not affected | | 12.04 LTS precise | Not in release | | linux-aws-5.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-aws-5.4 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-aws-6.14 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-aws-6.8 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-aws-hwe | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | linux-azure | 25.04 plucky | Not affected | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Ignored end of standard support | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not affected | | linux-azure-4.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-azure-5.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-azure-5.4 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-azure-6.11 | 25.04 plucky | Not in release | | 24.04 LTS noble | Ignored superseded by linux-azure-6.14, was needs-triage | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-azure-6.8 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-azure-fde | 25.04 plucky | Not affected | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Ignored end of standard support | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-azure-fde-5.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored end of standard support, was needed | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-azure-nvidia | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-bluefield | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-fips | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy FIPS Updates | Not affected | | 20.04 LTS focal FIPS | Not affected | | 18.04 LTS bionic FIPS | Not affected | | 16.04 LTS xenial FIPS | Not affected | | 14.04 LTS trusty | Not in release | | linux-flo | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Ignored end of life | | 16.04 LTS xenial | Not in release | | 15.10 wily | Ignored end of life | | 15.04 vivid | Ignored end of life | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-gcp | 25.04 plucky | Not affected | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Ignored end of standard support | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | linux-gcp-4.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gcp-5.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gcp-5.4 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gcp-6.11 | 25.04 plucky | Not in release | | 24.04 LTS noble | Ignored superseded by linux-gcp-6.14, was needs-triage | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gcp-6.14 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gcp-6.8 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gke | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Ignored end of kernel support | | 18.04 LTS bionic | Not in release | | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-gkeop | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Ignored end of kernel support | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-goldfish | 17.10 artful | Not in release | | 17.04 zesty | Ignored end of life | | 16.10 yakkety | Ignored end of life | | 16.04 LTS xenial | Not in release | | 15.10 wily | Ignored end of life | | 15.04 vivid | Ignored end of life | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-grouper | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-hwe | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Ignored end of standard support | | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-hwe-5.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-hwe-5.4 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-hwe-6.11 | 25.04 plucky | Not in release | | 24.04 LTS noble | Ignored superseded by linux-hwe-6.14, was needs-triage | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-hwe-6.14 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-hwe-6.8 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-hwe-edge | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Ignored end of standard support | | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-ibm | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-ibm-5.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-ibm-5.4 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-ibm-6.8 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-intel | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-intel-iot-realtime | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy Real-time | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-intel-iotg | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-intel-iotg-5.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-iot | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-kvm | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | linux-linaro-omap | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Ignored end of life | | linux-linaro-shared | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Ignored end of life | | linux-linaro-vexpress | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Ignored end of life | | linux-lowlatency | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-lowlatency-hwe-5.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-lowlatency-hwe-6.11 | 25.04 plucky | Not in release | | 24.04 LTS noble | Ignored replaced by linux-hwe-6.14, was needs-triage | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-lowlatency-hwe-6.8 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-lts-quantal | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Ignored end of life | | linux-lts-raring | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Ignored end of life | | linux-lts-saucy | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Ignored end of life | | linux-lts-trusty | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Fixed 3.13.0-103.150~precise1 | | linux-lts-utopic | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Fixed 3.16.0-57.77~14.04.1 | | 12.04 LTS precise | Not in release | | linux-lts-vivid | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Fixed 3.19.0-75.83~14.04.1 | | 12.04 LTS precise | Not in release | | linux-lts-wily | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Fixed 4.2.0-22.27~14.04.1 | | 12.04 LTS precise | Not in release | | linux-lts-xenial | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Fixed 4.4.0-51.72~14.04.1 | | 12.04 LTS precise | Not in release | | linux-maguro | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-mako | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Ignored end of life | | 16.04 LTS xenial | Not in release | | 15.10 wily | Ignored end of life | | 15.04 vivid | Ignored end of life | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-manta | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Ignored end of life | | 15.04 vivid | Ignored end of life | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-nvidia | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-nvidia-6.11 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-nvidia-6.8 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-nvidia-lowlatency | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-nvidia-tegra | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-nvidia-tegra-5.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-nvidia-tegra-igx | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-oem-6.11 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-oem-6.14 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-oem-6.8 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-oracle | 25.04 plucky | Not affected | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | linux-oracle-5.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-oracle-5.4 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-oracle-6.14 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-oracle-6.8 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-qcm-msm | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Ignored end of life | | linux-raspi | 25.04 plucky | Not affected | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-raspi-5.4 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-raspi-realtime | 25.04 plucky | Not in release | | 24.04 LTS noble Real-time | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-raspi2 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored end of standard support | | 18.04 LTS bionic | Ignored end of standard support | | 17.10 artful | Not affected | | 17.04 zesty | Not affected | | 16.10 yakkety | Fixed 4.8.0-1021.24 | | 16.04 LTS xenial | Fixed 4.4.0-1038.45 | | 15.10 wily | Fixed 4.2.0-1017.24 | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-realtime | 25.04 plucky | Not affected | | 24.04 LTS noble Real-time | Not affected | | 22.04 LTS jammy Real-time | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-realtime-6.14 | 25.04 plucky | Not in release | | 24.04 LTS noble Real-time | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-realtime-6.8 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy Real-time | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-riscv | 25.04 plucky | Not affected | | 24.04 LTS noble | Ignored replaced by linux-riscv-6.14 | | 22.04 LTS jammy | Ignored end of kernel support | | 20.04 LTS focal | Ignored end of standard support | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-riscv-5.15 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-riscv-6.14 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-riscv-6.8 | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-snapdragon | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Ignored end of standard support | | 17.10 artful | Not affected | | 17.04 zesty | Not affected | | 16.10 yakkety | Fixed 4.4.0-1046.50 | | 16.04 LTS xenial | Fixed 4.4.0-1042.46 | | 15.10 wily | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-ti-omap4 | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not affected | | linux-xilinx-zynqmp | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2015-8709?format=md#patch-details) ## Notes --- ### [sbeattie](https://launchpad.net/~sbeattie) published fix has been reverted and replaced by upstream commit. Published kernels are not vulnerable to this, the status is tracking the state of the replaced commit coming through the trees. ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | linux | * Introduced by [1da177e](https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2), fixed by [bfedb58](https://git.kernel.org/linus/bfedb589252c01fa505ac9f6f2a3d5d68d707ef4) | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 7.0 · High * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Local | | Attack complexity | High | | Privileges required | Low | | User interaction | None | | Scope | Unchanged | | Confidentiality impact | High | | Integrity impact | High | | Availability impact | High | * Scores | Parameter | Value | | --- | --- | | Base score | 7.0 · High | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8709) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-8709) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-8709) * [Debian](https://security-tracker.debian.org/tracker/CVE-2015-8709) ### Related Ubuntu Security Notices (USN) + [USN-2853-1](https://usn.ubuntu.com/USN-2853-1) + Linux kernel (Wily HWE) vulnerabilities + 20 December 2015 + [USN-2851-1](https://usn.ubuntu.com/USN-2851-1) + Linux kernel vulnerabilities + 19 December 2015 + [USN-2848-1](https://usn.ubuntu.com/USN-2848-1) + Linux kernel vulnerabilities + 19 December 2015 + [USN-2849-1](https://usn.ubuntu.com/USN-2849-1) + Linux kernel (Utopic HWE) vulnerabilities + 19 December 2015 + [USN-2854-1](https://usn.ubuntu.com/USN-2854-1) + Linux kernel (Vivid HWE) vulnerabilities + 20 December 2015 + [USN-2850-1](https://usn.ubuntu.com/USN-2850-1) + Linux kernel vulnerabilities + 19 December 2015 + [USN-2847-1](https://usn.ubuntu.com/USN-2847-1) + Linux kernel (Trusty HWE) vulnerabilities + 19 December 2015 + [USN-2852-1](https://usn.ubuntu.com/USN-2852-1) + Linux kernel (Raspberry Pi 2) vulnerability + 19 December 2015 ### Other references * * *