CVE-2013-2206

Severity: medium (CVSS 5.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-07-04 · updated 2026-06-16

Description

The sctp_sf_do_5_2_4_dupcook function in net/sctp/sm_statefuns.c in the SCTP implementation in the Linux kernel before 3.8.5 does not properly handle associations during the processing of a duplicate COOKIE ECHO chunk, which allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted SCTP traffic.

Affected products

Linux kernel: through 3.8.4; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+211)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f2815633504b442ca0b0605c16bf3d88a3a0fcea
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00023.html
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00024.html
http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
http://rhn.redhat.com/errata/RHSA-2013-1166.html
http://rhn.redhat.com/errata/RHSA-2013-1173.html
http://www.debian.org/security/2013/dsa-2766
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.5
http://www.openwall.com/lists/oss-security/2013/06/21/1
http://www.ubuntu.com/usn/USN-1939-1

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