Vulnerability identifier: #VU40561

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-8734

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.

The dissect_nwp function in epan/dissectors/packet-nwp.c in the NWP dissector in Wireshark 2.0.x before 2.0.1 mishandles the packet type, 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: 2.0.0

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External links
http://www.securitytracker.com/id/1034551
http://www.wireshark.org/security/wnpa-sec-2015-52.html
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11726
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=9b2c889abe0219fc162659e106c5b95deb6268f3
http://security.gentoo.org/glsa/201604-05

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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.