SB20260812213 - Integer overflow in Linux kernel sctp
Published: August 12, 2026
Security Bulletin ID
SB20260812213
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Integer overflow (CVE-ID: CVE-2026-68315)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to an integer overflow in sctp_process_strreset_inreq() when processing a crafted SCTP RESET_IN_REQUEST from a peer. A remote attacker can send a specially crafted SCTP stream reset request to cause a denial of service.
Exploitation is only possible on interfaces with MTU greater than 65535, such as loopback with IPv6 jumbograms.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/00ae679cb21a035491fdad8d58dc6d79cc68b675
- https://git.kernel.org/stable/c/18ae07691d43183d270de8be9dc8e027906015d9
- https://git.kernel.org/stable/c/1a10fe1aa9c01f41b389a31906a77d538637c9d9
- https://git.kernel.org/stable/c/6f0e39d180cd7cced647381b6fa14fd83d261047
- https://git.kernel.org/stable/c/b255d8cd6cc68045ae9eecbac3b3c14e1f176c9b