SB2012122109 - Input validation error in Linux kernel
Published: December 21, 2012 Updated: August 11, 2020
Security Bulletin ID
SB2012122109
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2012-4444)
The vulnerability allows a remote non-authenticated attacker to manipulate data.
The ip6_frag_queue function in net/ipv6/reassembly.c in the Linux kernel before 2.6.36 allows remote attackers to bypass intended network restrictions via overlapping IPv6 fragments.
Remediation
Install update from vendor's website.
References
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=70789d7052239992824628db8133de08dc78e593
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00000.html
- http://rhn.redhat.com/errata/RHSA-2012-1580.html
- http://www.openwall.com/lists/oss-security/2012/11/09/2
- http://www.ubuntu.com/usn/USN-1660-1
- http://www.ubuntu.com/usn/USN-1661-1
- https://bugzilla.redhat.com/show_bug.cgi?id=874835
- https://github.com/torvalds/linux/commit/70789d7052239992824628db8133de08dc78e593
- https://media.blackhat.com/bh-eu-12/Atlasis/bh-eu-12-Atlasis-Attacking_IPv6-WP.pdf