SB2013120910 - Race condition in Linux kernel
Published: December 9, 2013 Updated: August 10, 2020
Security Bulletin ID
SB2013120910
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 security vulnerability.
1) Race condition (CVE-ID: CVE-2013-7026)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
Multiple race conditions in ipc/shm.c in the Linux kernel before 3.12.2 allow local users to cause a denial of service (use-after-free and system crash) or possibly have unspecified other impact via a crafted application that uses shmctl IPC_RMID operations in conjunction with other shm system calls.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a399b29dfbaaaf91162b2dc5a5875dd51bbfa2a1
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.2
- http://www.ubuntu.com/usn/USN-2070-1
- http://www.ubuntu.com/usn/USN-2075-1
- https://github.com/torvalds/linux/commit/a399b29dfbaaaf91162b2dc5a5875dd51bbfa2a1