#VU32587 Buffer overflow in Wireshark - CVE-2013-7114

Vulnerability identifier: #VU32587

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-2013-7114

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Wireshark
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Wireshark.org

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Multiple buffer overflows in the create_ntlmssp_v2_key function in epan/dissectors/packet-ntlmssp.c in the NTLMSSP v2 dissector in Wireshark 1.8.x before 1.8.12 and 1.10.x before 1.10.4 allow remote attackers to cause a denial of service (application crash) via a long domain name in a packet.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Wireshark: 1.8.0 - 1.8.11

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External links
https://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-ntlmssp.c?r1=53626&r2=53625&pathrev=53626
https://anonsvn.wireshark.org/viewvc?view=revision&revision=53626
https://lists.opensuse.org/opensuse-updates/2014-01/msg00007.html
https://lists.opensuse.org/opensuse-updates/2014-01/msg00011.html
https://lists.opensuse.org/opensuse-updates/2014-01/msg00014.html
https://rhn.redhat.com/errata/RHSA-2014-0342.html
https://secunia.com/advisories/56052
https://secunia.com/advisories/56285
https://secunia.com/advisories/56313
https://www.debian.org/security/2013/dsa-2825
https://www.mandriva.com/security/advisories?name=MDVSA-2013:296
https://www.wireshark.org/security/wnpa-sec-2013-68.html

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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.