CVE-2012-2744

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-08-09 · updated 2026-06-16

Description

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.

Affected products

Linux kernel: through 2.6.33.20; 2.6.33, 2.6.33.1, 2.6.33.2, 2.6.33.3, 2.6.33.4, 2.6.33.5 (+14)

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9e2dcf72023d1447f09c47d77c99b0c49659e5ce
http://rhn.redhat.com/errata/RHSA-2012-1064.html
http://rhn.redhat.com/errata/RHSA-2012-1148.html
http://secunia.com/advisories/49928
http://www.securityfocus.com/bid/54367
http://www.securitytracker.com/id?1027235
https://bugzilla.redhat.com/show_bug.cgi?id=833402
https://github.com/torvalds/linux/commit/9e2dcf72023d1447f09c47d77c99b0c49659e5ce
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9e2dcf72023d1447f09c47d77c99b0c49659e5ce
http://rhn.redhat.com/errata/RHSA-2012-1064.html

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