VULNERABILITY INTELLIGENCE

CVE-2023-6931

CVSS score7.8 HIGH
EPSS probability0.71%
CISA KEVNot currently listed
Published2023-12-19
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

  • cve-coordination@google.com: CWE-787
  • nvd@nist.gov: CWE-787

Primary references