--- title: "CVE-2019-18786\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-2019-18786?format=md keywords: index, follow --- # CVE-2019-18786 Publication date 6 November 2019 Last updated 4 July 2026 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **5.5 · Medium** [Score breakdown](https://ubuntu.com/security/CVE-2019-18786?format=md#impact-score) Toggle side navigation ## Description In the Linux kernel through 5.3.8, f->fmt.sdr.reserved is uninitialized in rcar\_drif\_g\_fmt\_sdr\_cap in drivers/media/platform/rcar\_drif.c, which could cause a memory disclosure problem. ### From the Ubuntu Security Team It was discovered that the Renesas Digital Radio Interface (DRIF) driver in the Linux kernel did not properly initialize data. A local attacker could possibly use this to expose sensitive information (kernel memory). ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux | 20.04 LTS focal | Not affected | | 19.10 eoan | Fixed 5.3.0-40.32 | | 19.04 disco | Ignored end of life | | 18.04 LTS bionic | Fixed 4.15.0-88.88 | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Ignored end of standard support | | linux-aws | 20.04 LTS focal | Not affected | | 19.10 eoan | Fixed 5.3.0-1011.12 | | 19.04 disco | Ignored end of life | | 18.04 LTS bionic | Fixed 4.15.0-1060.62 | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Ignored end of standard support | | linux-aws-5.0 | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Fixed 5.0.0-1025.28 | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-aws-5.3 | 20.04 LTS focal | Not in release | | 19.10 eoan | 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-hwe | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Fixed 4.15.0-1060.62~16.04.1 | | 14.04 LTS trusty | Not in release | | linux-azure | 20.04 LTS focal | Not affected | | 19.10 eoan | Fixed 5.3.0-1013.14 | | 19.04 disco | Ignored end of life | | 18.04 LTS bionic | Fixed 5.0.0-1032.34 | | 16.04 LTS xenial | Fixed 4.15.0-1071.76 | | 14.04 LTS trusty | Fixed 4.15.0-1071.76~14.04.1 Ubuntu Pro | | linux-azure-4.15 | 20.04 LTS focal | Not in release | | 19.10 eoan | 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-5.3 | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Fixed 5.3.0-1013.14~18.04.1 | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-azure-edge | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Ignored end of standard support, was needs-triage | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gcp | 20.04 LTS focal | Not affected | | 19.10 eoan | Fixed 5.3.0-1012.13 | | 19.04 disco | Ignored end of life | | 18.04 LTS bionic | Fixed 5.0.0-1031.32 | | 16.04 LTS xenial | Fixed 4.15.0-1055.59 | | 14.04 LTS trusty | Not in release | | linux-gcp-4.15 | 20.04 LTS focal | Not in release | | 19.10 eoan | 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-5.3 | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Fixed 5.3.0-1012.13~18.04.1 | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gcp-edge | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Ignored end of standard support, was needs-triage | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gke-4.15 | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Fixed 4.15.0-1052.55 | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gke-5.0 | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Fixed 5.0.0-1030.31 | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-gke-5.3 | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 18.04 LTS bionic | Fixed 5.3.0-1012.13~18.04.1 | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-hwe | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Fixed 5.3.0-40.32~18.04.1 | | 16.04 LTS xenial | Fixed 4.15.0-88.88~16.04.1 | | 14.04 LTS trusty | Not in release | | linux-hwe-edge | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Ignored end of standard support, was needed | | 16.04 LTS xenial | Ignored end of standard support, was needed | | 14.04 LTS trusty | Not in release | | linux-kvm | 20.04 LTS focal | Not affected | | 19.10 eoan | Fixed 5.3.0-1010.11 | | 19.04 disco | Ignored end of life | | 18.04 LTS bionic | Fixed 4.15.0-1053.53 | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | linux-lts-trusty | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | 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-xenial | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Ignored end of standard support | | linux-oem | 20.04 LTS focal | Not in release | | 19.10 eoan | Ignored end of life, was pending | | 19.04 disco | Ignored end of life | | 18.04 LTS bionic | Fixed 4.15.0-1073.83 | | 16.04 LTS xenial | Ignored end of standard support, was needs-triage | | 14.04 LTS trusty | Not in release | | linux-oem-5.6 | 20.04 LTS focal | Not affected | | 19.10 eoan | 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-osp1 | 20.04 LTS focal | Not in release | | 19.10 eoan | Ignored end of life, was pending | | 19.04 disco | Ignored end of life | | 18.04 LTS bionic | Fixed 5.0.0-1039.44 | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-oracle | 20.04 LTS focal | Not affected | | 19.10 eoan | Fixed 5.3.0-1009.10 | | 19.04 disco | Ignored end of life | | 18.04 LTS bionic | Fixed 4.15.0-1033.36 | | 16.04 LTS xenial | Fixed 4.15.0-1033.36~16.04.1 | | 14.04 LTS trusty | Not in release | | linux-oracle-5.0 | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Fixed 5.0.0-1011.16 | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-oracle-5.3 | 20.04 LTS focal | Not in release | | 19.10 eoan | 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 | 20.04 LTS focal | Not affected | | 19.10 eoan | 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 | 20.04 LTS focal | Ignored end of standard support, was needed | | 19.10 eoan | Fixed 5.3.0-1018.20 | | 19.04 disco | Ignored end of life | | 18.04 LTS bionic | Fixed 4.15.0-1055.59 | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not in release | | linux-raspi2-5.3 | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 18.04 LTS bionic | Fixed 5.3.0-1018.20~18.04.1 | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | linux-riscv | 20.04 LTS focal | Not affected | | 19.10 eoan | 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 | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Ignored end of life | | 18.04 LTS bionic | Fixed 4.15.0-1072.79 | | 16.04 LTS xenial | Not affected | | 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-2019-18786?format=md#patch-details) ### Get expanded security coverage with Ubuntu Pro Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use. [Get Ubuntu Pro](https://ubuntu.com/pro) [30-day free trial](https://ubuntu.com/pro/free-trial) ### 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 [7625ee9](https://git.kernel.org/linus/7625ee981af166ddb569e2e6c0006e2af471326f), fixed by [d390832](https://git.kernel.org/linus/d39083234c60519724c6ed59509a2129fd2aed41) | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 5.5 · Medium * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Local | | Attack complexity | Low | | Privileges required | Low | | User interaction | None | | Scope | Unchanged | | Confidentiality impact | High | | Integrity impact | None | | Availability impact | None | * Scores | Parameter | Value | | --- | --- | | Base score | 5.5 · Medium | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18786) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-18786) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-18786) * [Debian](https://security-tracker.debian.org/tracker/CVE-2019-18786) ### Related Ubuntu Security Notices (USN) + [USN-4284-1](https://usn.ubuntu.com/USN-4284-1) + Linux kernel vulnerabilities + 19 February 2020 + [USN-4285-1](https://usn.ubuntu.com/USN-4285-1) + Linux kernel vulnerabilities + 18 February 2020 + [USN-4287-1](https://usn.ubuntu.com/USN-4287-1) + Linux kernel vulnerabilities + 18 February 2020 + [USN-4287-2](https://usn.ubuntu.com/USN-4287-2) + Linux kernel (Azure) vulnerabilities + 18 February 2020 ### Other references * * *