CVE-2012-4444

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-12-21 · updated 2026-06-16

Description

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.

Affected products

Linux kernel: through 2.6.36; 2.6.30, 2.6.30-rc1, 2.6.30-rc2, 2.6.30-rc3, 2.6.30-rc4, 2.6.30-rc5 (+178)

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%3Ba=commit%3Bh=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
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%3Ba=commit%3Bh=70789d7052239992824628db8133de08dc78e593

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