Vulnerability identifier: #VU32095

Vulnerability risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-6513

CWE-ID: CWE-399

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 a denial of service (DoS) attack.

epan/dissectors/packet-wbxml.c in the WBXML dissector in Wireshark 2.x before 2.0.5 does not restrict the recursion depth, 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: 1.2.0 - 1.2.18, 1.12.0 - 1.12.13, 2.0.0 - 2.0.4

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External links
http://openwall.com/lists/oss-security/2016/07/28/3
http://www.securitytracker.com/id/1036480
http://www.wireshark.org/security/wnpa-sec-2016-49.html
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12663
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=347f071f1b9180563c28b0f3d0627b91eb456c72

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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.