Input validation error in Linux kernel - CVE-2014-4667
Published: July 3, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU41503
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-4667
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
The sctp_association_free function in net/sctp/associola.c in the Linux kernel before 3.15.2 does not properly manage a certain backlog value, which allows remote attackers to cause a denial of service (socket outage) via a crafted SCTP packet.
Affected software
Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-trusty (Ubuntu package)
Ubuntu
linux (Ubuntu package)
linux-lts-trusty (Ubuntu package)
How to mitigate CVE-2014-4667
Install update from vendor's website.
linux (Ubuntu package) - addressed in versions 2.6.32-65.131, 3.2.0-68.102, 3.13.0-35.62
linux-lts-trusty (Ubuntu package) - update to 3.13.0-35.62~precise1
linux-lts-trusty (Ubuntu package) - update to 3.13.0-35.62~precise1
External References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d3217b15a19a4779c39b212358a5c71d725822ee
- http://linux.oracle.com/errata/ELSA-2014-3068.html
- http://linux.oracle.com/errata/ELSA-2014-3069.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
- http://secunia.com/advisories/59777
- http://secunia.com/advisories/59790
- http://secunia.com/advisories/60564
- http://secunia.com/advisories/60596
- http://www.debian.org/security/2014/dsa-2992
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2
- http://www.openwall.com/lists/oss-security/2014/06/27/11
- http://www.securityfocus.com/bid/68224
- http://www.ubuntu.com/usn/USN-2334-1
- http://www.ubuntu.com/usn/USN-2335-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1113967
- https://github.com/torvalds/linux/commit/d3217b15a19a4779c39b212358a5c71d725822ee