vulnerability
Ubuntu: (CVE-2021-4154): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Feb 4, 2022 | Nov 19, 2024 | Sep 1, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Feb 4, 2022
Added
Nov 19, 2024
Modified
Sep 1, 2025
Description
A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.
Solutions
ubuntu-upgrade-linuxubuntu-upgrade-linux-awsubuntu-upgrade-linux-aws-5-11ubuntu-upgrade-linux-aws-5-4ubuntu-upgrade-linux-aws-fipsubuntu-upgrade-linux-azureubuntu-upgrade-linux-azure-5-11ubuntu-upgrade-linux-azure-5-4ubuntu-upgrade-linux-azure-fdeubuntu-upgrade-linux-azure-fipsubuntu-upgrade-linux-bluefieldubuntu-upgrade-linux-fipsubuntu-upgrade-linux-gcpubuntu-upgrade-linux-gcp-5-11ubuntu-upgrade-linux-gcp-5-4ubuntu-upgrade-linux-gcp-fipsubuntu-upgrade-linux-gkeubuntu-upgrade-linux-gke-5-4ubuntu-upgrade-linux-gkeopubuntu-upgrade-linux-gkeop-5-4ubuntu-upgrade-linux-hwe-5-4ubuntu-upgrade-linux-ibmubuntu-upgrade-linux-kvmubuntu-upgrade-linux-oem-5-10ubuntu-upgrade-linux-oem-5-13ubuntu-upgrade-linux-oracleubuntu-upgrade-linux-oracle-5-11ubuntu-upgrade-linux-oracle-5-4ubuntu-upgrade-linux-raspiubuntu-upgrade-linux-raspi-5-4ubuntu-upgrade-linux-riscv-5-11
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