SB2013060707 - Resource management error in Linux kernel
Published: June 7, 2013 Updated: August 11, 2020
Security Bulletin ID
SB2013060707
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2013-2141)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
The do_tkill function in kernel/signal.c in the Linux kernel before 3.8.9 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel memory via a crafted application that makes a (1) tkill or (2) tgkill system call.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b9e146d8eb3b9ecae5086d373b50fa0c1f3e7f0f
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
- http://rhn.redhat.com/errata/RHSA-2013-1801.html
- http://secunia.com/advisories/55055
- http://www.debian.org/security/2013/dsa-2766
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://www.openwall.com/lists/oss-security/2013/06/04/10
- http://www.ubuntu.com/usn/USN-1899-1
- http://www.ubuntu.com/usn/USN-1900-1
- https://bugzilla.redhat.com/show_bug.cgi?id=970873
- https://github.com/torvalds/linux/commit/b9e146d8eb3b9ecae5086d373b50fa0c1f3e7f0f