CVE-2023-6931
Published:December 19, 2023
Updated:May 17, 2026
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 Packages
linux-yocto (YOCTO):
Affected version(s) >=4.8 <4.8.12+gitAUTOINC+926c93ae07_021b4aef55Fix Suggestion:
Update to version 4.8.12+gitAUTOINC+926c93ae07_021b4aef55linux-yocto (YOCTO):
Affected version(s) =4.9.3+gitAUTOINC+03a2d3f7f9_881cba95ae <4.10+gitAUTOINC+805ea440c7_b259a5d744Fix Suggestion:
Update to version 4.10+gitAUTOINC+805ea440c7_b259a5d744linux-libc-headers (YOCTO):
Affected version(s) >=5.4 <5.14Fix Suggestion:
Update to version 5.14Related Resources (8)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.5
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Write
EPSS
Base Score:
0.24