#VU40559 Stack-based buffer overflow in Wireshark - CVE-2015-8736

Vulnerability identifier: #VU40559

Vulnerability risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2015-8736

CWE-ID: CWE-121

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 attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the mp2t_find_next_pcr function in wiretap/mp2t.c in the MP2T file parser when processing a crafted file. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Wireshark: 2.0.0

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External links
https://www.securityfocus.com/bid/79382
https://www.securitytracker.com/id/1034551
https://www.wireshark.org/security/wnpa-sec-2015-54.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11820
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=baa3eab78b422616a92ee38551c1b1510dca4ccb
https://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.