Updated: 2024-11-23 02:10:57.379276
Description:
There is a vulnerability in the linux kernel versions higher than 5.2 (if kernel compiled with config params CONFIG_BPF_SYSCALL=y , CONFIG_BPF=y , CONFIG_CGROUPS=y , CONFIG_CGROUP_BPF=y , CONFIG_HARDENED_USERCOPY not set, and BPF hook to getsockopt is registered). As result of BPF execution, the local user can trigger bug in __cgroup_bpf_run_filter_getsockopt() function that can lead to heap overflow (because of non-hardened usercopy). The impact of attack could be deny of service or possibly privileges escalation.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | MEDIUM | 4.6 |
| CVSS Version 3.x | HIGH | 7.8 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.8 | HIGH | Already Fixed | 2023-12-19 13:11:34 | ||
| AlmaLinux 9.2 FIPS | kernel | 5.14.0 | 7.8 | HIGH | Already Fixed | 2024-01-19 13:10:11 | ||
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.8 | HIGH | Released | CLSA-2022:1651145959 | 2022-04-28 16:00:02 | |
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.8 | HIGH | Ignored | 2022-02-21 05:39:42 | ||
| Ubuntu 16.04 ELS | linux | 4.4.0 | 7.8 | HIGH | Not Vulnerable | 2022-02-17 08:55:36 |