SB20250916266 - Integer underflow in Linux kernel ipv6
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916266
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) Integer underflow (CVE-ID: CVE-2023-53189)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the addrconf_del_dad_work() function in net/ipv6/addrconf.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/06a0716949c22e2aefb648526580671197151acc
- https://git.kernel.org/stable/c/1f656e483eb4733d62f18dfb206a49b78f60f495
- https://git.kernel.org/stable/c/2ad31ce40e8182860b631e37209e93e543790b7c
- https://git.kernel.org/stable/c/436b7cc7eae7851c184b671ed7a4a64c750b86f7
- https://git.kernel.org/stable/c/82abd1c37d3bf2a2658b34772c17a25a6f9cca42
- https://git.kernel.org/stable/c/c6395e32935d35e6f935e7caf1c2dac5a95943b4
- https://git.kernel.org/stable/c/c7eeba47058532f6077d6a658e38b6698f6ae71a
- https://git.kernel.org/stable/c/df62fdcd004afa72ecbed0e862ebb983acd3aa57
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.291