Description
A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.
Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 5.4.0-105.119 |
| linux-aws | — | 5.4.0-1069.73 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | 5.13.0-1019.21~20.04.1 |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | 5.4.0-1069.73~18.04.1 |
| linux-aws-5.8 | — | — |
| linux-aws-fips | — | — |
| linux-aws-hwe | — | 4.15.0-1124.133~16.04.1 |
| linux-azure | — | 5.4.0-1073.76 |
| linux-azure-4.15 | — | 4.15.0-1134.147 |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | 5.13.0-1021.24~20.04.1 |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | 5.4.0-1073.76~18.04.1 |
| linux-azure-5.8 | — | — |
| linux-azure-edge | — | — |
| linux-azure-fips | — | — |
| linux-bluefield | — | — |
| linux-dell300x | — | 4.15.0-1038.43 |
| linux-fips | — | — |
| linux-gcp | — | 5.4.0-1068.72 |
| linux-gcp-4.15 | — | 4.15.0-1119.133 |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | 5.13.0-1021.25~20.04.1 |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | 5.4.0-1068.72~18.04.1 |
| linux-gcp-5.8 | — | — |
| linux-gcp-fips | — | — |
| linux-gke | — | 5.4.0-1066.69 |
| linux-gke-4.15 | — | — |
| linux-gke-5.4 | — | 5.4.0-1066.69~18.04.1 |
| linux-gkeop | — | 5.4.0-1037.38 |
| linux-gkeop-5.4 | — | 5.4.0-1037.38~18.04.1 |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | 5.13.0-37.42~20.04.1 |
| linux-hwe-5.4 | — | 5.4.0-105.119~18.04.1 |
| linux-hwe-5.8 | — | — |
| linux-hwe-edge | — | — |
| linux-ibm | — | 5.4.0-1018.20 |
| linux-ibm-5.4 | — | 5.4.0-1018.20~18.04.1 |
| linux-intel-5.13 | — | 5.13.0-1010.10 |
| linux-intel-iot-realtime | — | — |
| linux-intel-iotg-5.15 | — | 5.15.0-1008.11~20.04.1 |
| linux-kvm | — | 5.4.0-1059.62 |
| linux-lts-xenial | — | 4.4.0-222.255~14.04.1 |
| linux-oem | — | — |
| linux-oem-5.10 | — | — |
| linux-oem-5.13 | — | — |
| linux-oem-5.14 | — | 5.14.0-1024.26 |
| linux-oem-5.6 | — | — |
| linux-oracle | — | 5.4.0-1067.72 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | 5.13.0-1025.30~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | 5.4.0-1067.72~18.04.1 |
| linux-oracle-5.8 | — | — |
| linux-raspi | — | 5.4.0-1056.63 |
| linux-raspi-5.4 | — | 5.4.0-1056.63~18.04.1 |
| linux-raspi-realtime | — | — |
| linux-raspi2 | — | — |
| linux-realtime | — | — |
| linux-riscv | — | — |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.8 | — | — |
| linux-snapdragon | — | 4.15.0-1123.132 |
References
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