Division by zero in Wireshark

1) Division by zero

EUVDB-ID: #VU32251

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 - Divide By Zero

Exploit availability: No

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

CPE2.3

• cpe:2.3:a:wireshark_org:wireshark:1.12.12:*:*:*:*:*:*:*

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/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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