SB2024062543 - NULL pointer dereference in Linux kernel tls
Published: June 25, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062543
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) NULL pointer dereference (CVE-ID: CVE-2023-52767)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the tls_sw_splice_eof() function in net/tls/tls_sw.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/944900fe2736c07288efe2d9394db4d3ca23f2c9
- https://git.kernel.org/stable/c/2214e2bb5489145aba944874d0ee1652a0a63dc8
- https://git.kernel.org/stable/c/53f2cb491b500897a619ff6abd72f565933760f0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.79
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7