CVE-2023-6931
Out-of-bounds write in Linux kernel's Performance Events system component
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 4.19.302, 5.4.264, 5.10.204, 5.15.143, 6.1.68, and 1 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- kernel
From 4.3.0 · fixed in 4.19.302; From 4.20.0 · fixed in 5.4.264; From 5.5.0 · fixed in 5.10.204; From 5.11.0 · fixed in 5.15.143; From 5.16.0 · fixed in 6.1.68; From 6.2.0 · fixed in 6.6.7