Vulnerability identifier: #VU40557

Vulnerability risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2015-8739

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

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 ipmi_fmt_udpport function in epan/dissectors/packet-ipmi.c in the IPMI dissector in Wireshark 2.0.x before 2.0.1 improperly attempts to access a packet scope, which allows remote attackers to cause a denial of service (assertion failure and application exit) 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.securityfocus.com/bid/79382
http://www.securitytracker.com/id/1034551
http://www.wireshark.org/security/wnpa-sec-2015-57.html
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11831
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=96bf82ced0b58c7a4c2a6c300efeebe4f05c0ff4
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. However, proof of concept for this vulnerability is available.