#VU33306 Input validation error in GnuTLS - CVE-2013-2116

Vulnerability identifier: #VU33306

Vulnerability risk: Medium

CVSSv4.0: 2.7 [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/E:U/U:Green]

CVE-ID: CVE-2013-2116

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GnuTLS
Universal components / Libraries / Libraries used by multiple products

Vendor: GnuTLS

Description

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (buffer over-read and crash) via a crafted padding length.

Mitigation
Update to version 2.12.24.

Vulnerable software versions

GnuTLS: 2.12.23

---

External links
https://lists.opensuse.org/opensuse-security-announce/2013-06/msg00019.html
https://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html
https://lists.opensuse.org/opensuse-security-announce/2014-03/msg00003.html
https://rhn.redhat.com/errata/RHSA-2013-0883.html
https://secunia.com/advisories/53911
https://secunia.com/advisories/57260
https://secunia.com/advisories/57274
https://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/6753
https://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/6754
https://www.debian.org/security/2013/dsa-2697
https://www.gnutls.org/security.html#GNUTLS-SA-2013-2
https://www.mandriva.com/security/advisories?name=MDVSA-2013:171
https://www.securitytracker.com/id/1028603
https://www.ubuntu.com/usn/USN-1843-1
https://gitorious.org/gnutls/gnutls/commit/5164d5a1d57cd0372a5dd074382ca960ca18b27d

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.