SB2025082907 - Use-after-free in Linux kernel tls
Published: August 29, 2025 Updated: March 14, 2026
Security Bulletin ID
SB2025082907
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Race condition (CVE-ID: CVE-2024-58240)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a race condition between async notify and socket close within the tls_do_decryption() function in net/tls/tls_sw.c. A remote attacker can perform a denial of service attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/41532b785e9d79636b3815a64ddf6a096647d011
- https://git.kernel.org/stable/c/48905146d11dbf1ddbb2967319016a83976953f5
- https://git.kernel.org/stable/c/999115298017a675d8ddf61414fc7a85c89f1186
- https://git.kernel.org/stable/c/dec5b6e7b211e405d3bcb504562ab21aa7e5a64d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.21