Vulnerability identifier: #VU42225

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-7113

CWE-ID: CWE-20

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.

epan/dissectors/packet-bssgp.c in the BSSGP dissector in Wireshark 1.10.x before 1.10.4 incorrectly relies on a global variable, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Wireshark: 1.10.0 - 1.10.3

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External links
http://anonsvn.wireshark.org/viewvc/trunk-1.10/epan/dissectors/packet-bssgp.c?r1=53803&r2=53802&pathrev=53803
http://anonsvn.wireshark.org/viewvc?view=revision&revision=53803
http://lists.opensuse.org/opensuse-updates/2014-01/msg00007.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00011.html
http://secunia.com/advisories/56052
http://secunia.com/advisories/56313
http://www.debian.org/security/2013/dsa-2825
http://www.wireshark.org/security/wnpa-sec-2013-67.html
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9488

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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.