Vulnerability identifier: #VU32251

Vulnerability risk: Medium

CVSSv3.1: 5.2 [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-2016-6505

CWE-ID: CWE-369

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 attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to divide-by-zero error within epan/dissectors/packet-packetbb.c in the PacketBB dissector in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5. A remote attacker can perform a denial of service (divide-by-zero error and application crash) via a crafted packet.

Mitigation
Update to version 1.12.13.

Vulnerable software versions

Wireshark: 1.12.0 - 1.12.12

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External links
http://openwall.com/lists/oss-security/2016/07/28/3
http://www.debian.org/security/2016/dsa-3648
http://www.securityfocus.com/bid/92163
http://www.securitytracker.com/id/1036480
http://www.wireshark.org/security/wnpa-sec-2016-41.html
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12577
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=94e97e45cf614c7bb8fe90c23df52910246b2c95
http://www.exploit-db.com/exploits/40197/

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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.