SB20250226633 - Buffer overflow in Linux kernel bpf
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226633
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2022-49548)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the bpf_trampoline_link_prog() and bpf_trampoline_put() functions in kernel/bpf/trampoline.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/32c4559c61652f24c9fdd5440342196fe37453bc
- https://git.kernel.org/stable/c/4f8897bcc20b9ae44758e0572538d741ab66f0dc
- https://git.kernel.org/stable/c/7f845de2863334bed4f362e95853f5e7bc323737
- https://git.kernel.org/stable/c/a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8d
- https://git.kernel.org/stable/c/e36452d5da6325df7c10cffc60a9e68d21e2606d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.45