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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | linux | < 5.14.6-1 | linux_5.14.6-1_all.deb |
Debian | 11 | all | linux | < 5.10.70-1 | linux_5.10.70-1_all.deb |
Debian | 10 | all | linux | < 4.19.249-2 | linux_4.19.249-2_all.deb |
Debian | 999 | all | linux | < 5.14.6-1 | linux_5.14.6-1_all.deb |
Debian | 13 | all | linux | < 5.14.6-1 | linux_5.14.6-1_all.deb |