CVE-2023-6931
Out-of-bounds write in Linux kernel's Performance Events system component
HIGH 7.0EPSS 0.7%
A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be exploited to achieve local privilege escalation.A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group().We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.
- Affected
- Linux · Linux Kernel
- CVSS v3.1 NVD
- 7.0 HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 GOOGLE
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.71% chance of exploitation in the next 30 days, 53rd percentile
- Published
- 2023-12-19
- Updated
- 2026-10-14
Proof-of-concept exploits (2)
- K0n9-log/CVE-2023-69312★ · 2025-01-06
- Yutori-Natsu/cve-2023-6931-pipa0★ · 2026-09-22
Exploit collections (2)
- linux/kernelctf/CVE-2023-6931_lts_cosgoogle/security-research
- linux/kernelctf/CVE-2023-6931_mitigationgoogle/security-research
Security advisories
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=382c27f4ed28f…
- https://kernel.dance/382c27f4ed28f803b1f1473ac2d8db0afc795a1b