SB2024050816 - Denial of service in Linux kernel bpf
Published: May 8, 2024
Security Bulletin ID
SB2024050816
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2023-52462)
The vulnerability allows a local user to crash the kernel.
The vulnerability exists due to a boundary error within the check_stack_write_fixed_off() function in kernel/bpf/verifier.c. A local user can trigger memory corruption and crash the kernel.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66ef
- https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cf
- https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104
- https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174
- https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036
- https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae