SB20250619163 - Use-after-free in Linux kernel arm64 crypto
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB20250619163
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) Use-after-free (CVE-ID: CVE-2022-50231)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the neon_poly1305_blocks() function in arch/arm64/crypto/poly1305-glue.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3c77292d52b341831cb09c24ca4112a1e4f9e91f
- https://git.kernel.org/stable/c/3d4c28475ee352c440b83484b72b1320ff76364a
- https://git.kernel.org/stable/c/7ae19d422c7da84b5f13bc08b98bd737a08d3a53
- https://git.kernel.org/stable/c/8d25a08599df7ca3093eb7ca731c7cd41cbfbb51
- https://git.kernel.org/stable/c/d069dcffef849b8fd10030fd73007a79612803e6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.1