CVE-2013-2206: Null Pointer Dereference
A flaw was found in the way Linux kernel's SCTP network protocol implementation handled duplicate cookies. A transient empty association is created while processing the duplicate cookie chunk that userspace could query, potentially leading to NULL pointer dereference. A remote attacker able to initiate SCTP connection to the system could use this flaw to create transient conditions that could lead to remote system crash if remote system user is querying SCTP connection info at the time these conditions exist.
Upstream fix: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f2815633504b442ca0b0605c16bf3d88a3a0fcea
Other sources
The sctpsfdo524dupcook function in net/sctp/smstatefuns.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.
— Launchpad
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2013-2206?
The severity of CVE-2013-2206 is considered high due to its potential to lead to a NULL pointer dereference by remote attackers.
How do I fix CVE-2013-2206?
To fix CVE-2013-2206, upgrade to a Linux kernel version 5.10.223-1 or higher, or 6.1.119-1 or higher.
Which versions of the Linux kernel are affected by CVE-2013-2206?
CVE-2013-2206 affects the Linux kernel versions prior to 3.8.4, including multiple release candidates.
What type of vulnerability is CVE-2013-2206?
CVE-2013-2206 is a vulnerability related to the SCTP network protocol implementation in the Linux kernel.
Can CVE-2013-2206 be exploited remotely?
Yes, CVE-2013-2206 can be exploited remotely by attackers who can send specific crafted packets to a vulnerable system.