Input validation error in Linux kernel - CVE-2012-4444
Published: December 21, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43235
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-4444
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2012-4444
Install update from vendor's website.
Sources
- 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