CVE-2020-12826
Publication date 12 May 2020
Last updated 27 September 2024
Ubuntu priority
Cvss 3 Severity Score
A signal access-control issue was discovered in the Linux kernel before 5.6.5, aka CID-7395ea4e65c2. Because exec_id in include/linux/sched.h is only 32 bits, an integer overflow can interfere with a do_notify_parent protection mechanism. A child process can send an arbitrary signal to a parent process in a different security domain. Exploitation limitations include the amount of elapsed time before an integer overflow occurs, and the lack of scenarios where signals to a parent process present a substantial operational threat.
From the Ubuntu Security Team
It was discovered that the exit signaling implementation in the Linux kernel contained an integer overflow. A local attacker could use this to cause a denial of service (arbitrary application crash).
Status
Package | Ubuntu Release | Status |
---|---|---|
linux | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Fixed 5.4.0-31.35
|
|
18.04 LTS bionic |
Fixed 4.15.0-101.102
|
|
16.04 LTS xenial |
Fixed 4.4.0-184.214
|
|
14.04 LTS trusty | Ignored ESM criteria, was needed | |
linux-aws | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Fixed 5.4.0-1011.11
|
|
18.04 LTS bionic |
Fixed 4.15.0-1067.71
|
|
16.04 LTS xenial |
Fixed 4.4.0-1109.120
|
|
14.04 LTS trusty |
Fixed 4.4.0-1073.77
|
|
linux-aws-5.0 | 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 life, was needs-triage | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-aws-5.15 | 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-5.3 | 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 |
Fixed 5.3.0-1019.21~18.04.1
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-aws-5.4 | 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-fips | 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 | Ignored end of standard support | |
14.04 LTS trusty | Not in release | |
linux-aws-hwe | 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 |
Fixed 4.15.0-1067.71~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-azure | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Fixed 5.4.0-1012.12
|
|
18.04 LTS bionic | Ignored end of life, was needs-triage | |
16.04 LTS xenial |
Fixed 4.15.0-1083.93~16.04.1
|
|
14.04 LTS trusty |
Fixed 4.15.0-1083.93~14.04.1
|
|
linux-azure-4.15 | 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 |
Fixed 4.15.0-1083.93
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-azure-5.15 | 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-5.3 | 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 |
Fixed 5.3.0-1022.23~18.04.1
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-azure-5.4 | 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-edge | 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 life, was needs-triage | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-azure-fde | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal | Ignored superseded by linux-azure-fde-5.15 | |
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 | 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-fips | 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 | Ignored end of standard support | |
14.04 LTS trusty | Not in release | |
linux-bluefield | 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-dell300x | 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-fips | 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 |
Fixed 4.4.0-1041.46
|
|
14.04 LTS trusty | Not in release | |
linux-gcp | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Fixed 5.4.0-1011.11
|
|
18.04 LTS bionic | Ignored end of life, was needs-triage | |
16.04 LTS xenial |
Fixed 4.15.0-1071.81~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-gcp-4.15 | 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 | 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-5.3 | 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 |
Fixed 5.3.0-1020.22~18.04.1
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-gcp-5.4 | 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-edge | ||
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored end of life, was needs-triage | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-gcp-fips | 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 | Ignored end of standard support | |
14.04 LTS trusty | Not in release | |
linux-gke | 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 | Ignored end of standard support | |
14.04 LTS trusty | Not in release | |
linux-gke-4.15 | 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 |
Fixed 4.15.0-1059.62
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-gke-5.0 | 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 |
Fixed 5.0.0-1037.38
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-gke-5.3 | 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 |
Fixed 5.3.0-1020.22~18.04.1
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-gke-5.4 | 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-gkeop | 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 | |
linux-gkeop-5.15 | 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-gkeop-5.4 | 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 | 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 |
Fixed 5.3.0-53.47~18.04.1
|
|
16.04 LTS xenial |
Fixed 4.15.0-101.102~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-hwe-5.15 | 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 | 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-5.8 | 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-6.8 | 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 | 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 life, was needs-triage | |
16.04 LTS xenial | Ignored end of life, was needs-triage | |
14.04 LTS trusty | Not in release | |
linux-ibm | 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 | 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 | 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-intel | 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 | 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 in release | |
14.04 LTS trusty | Not in release | |
linux-intel-iotg | 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 | 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 | 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 | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Fixed 5.4.0-1011.11
|
|
18.04 LTS bionic |
Fixed 4.15.0-1060.61
|
|
16.04 LTS xenial |
Fixed 4.4.0-1075.82
|
|
14.04 LTS trusty | Not in release | |
linux-lowlatency | 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 | 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-6.8 | 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-trusty | ||
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-xenial | 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 in release | |
14.04 LTS trusty |
Fixed 4.4.0-184.214~14.04.1
|
|
linux-nvidia | 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-6.5 | 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-6.8 | 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 | 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 | 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 |
Fixed 4.15.0-1081.91
|
|
16.04 LTS xenial | Ignored end of standard support, was needs-triage | |
14.04 LTS trusty | Not in release | |
linux-oem-5.10 | 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-oem-5.6 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Fixed 5.6.0-1010.10
|
|
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 | 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-osp1 | 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 |
Fixed 5.0.0-1052.57
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-oracle | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Fixed 5.4.0-1011.11
|
|
18.04 LTS bionic |
Fixed 4.15.0-1039.43
|
|
16.04 LTS xenial |
Fixed 4.15.0-1039.43~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-oracle-5.0 | 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 life, was needs-triage | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-oracle-5.15 | 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-5.3 | 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 |
Fixed 5.3.0-1018.20~18.04.1
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-oracle-5.4 | 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 | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Fixed 5.4.0-1011.11
|
|
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 | 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 | 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 in release | |
14.04 LTS trusty | Not in release | |
linux-raspi2 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored end of life, was needs-triage | |
18.04 LTS bionic |
Fixed 4.15.0-1062.66
|
|
16.04 LTS xenial |
Fixed 4.4.0-1134.143
|
|
14.04 LTS trusty | Not in release | |
linux-raspi2-5.3 | 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 |
Fixed 5.3.0-1026.28~18.04.1
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-realtime | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored superseded by Ubuntu Pro ppa version | |
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 | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy | Ignored end of kernel support | |
20.04 LTS focal |
Fixed 5.4.0-26.30
|
|
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 | 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-6.8 | 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 | 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 |
Fixed 4.15.0-1079.86
|
|
16.04 LTS xenial |
Fixed 4.4.0-1138.146
|
|
14.04 LTS trusty | Not in release | |
linux-xilinx-zynqmp | 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 |
Get expanded security coverage with Ubuntu Pro
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Get Ubuntu ProSeverity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 · Medium |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity impact | Low |
Availability impact | Low |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
References
Related Ubuntu Security Notices (USN)
- USN-4369-1
- Linux kernel vulnerabilities
- 24 May 2020
- USN-4367-1
- Linux kernel vulnerabilities
- 24 May 2020
- USN-4391-1
- Linux kernel vulnerabilities
- 11 June 2020
Other references
- https://git.kernel.org/linus/d1e7fd6462ca9fc76650fbe6ca800e35b24267da
- https://bugzilla.redhat.com/show_bug.cgi?id=1822077
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5
- https://github.com/torvalds/linux/commit/7395ea4e65c2a00d23185a3f63ad315756ba9cef
- https://lists.openwall.net/linux-kernel/2020/03/24/1803
- https://www.openwall.com/lists/kernel-hardening/2020/03/25/1
- https://www.cve.org/CVERecord?id=CVE-2020-12826