Vulnerability identifier: #VU39208

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-7957

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 a denial of service (DoS) attack.

In Wireshark 2.2.0, the Bluetooth L2CAP dissector could crash, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-btl2cap.c by avoiding use of a seven-byte memcmp for potentially shorter strings.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Wireshark: 2.2.0

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External links
http://www.securityfocus.com/bid/97597
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12825
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=355b56b1c6c545072ac0c1225730b526c6749f0a
http://www.wireshark.org/security/wnpa-sec-2016-56.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.