#VU42781 Buffer overflow in Wireshark - CVE-2013-4080

Vulnerability identifier: #VU42781

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-4080

CWE-ID: CWE-119

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 service disruption.

The dissect_r3_upstreamcommand_queryconfig function in epan/dissectors/packet-assa_r3.c in the Assa Abloy R3 dissector in Wireshark 1.8.x before 1.8.8 does not properly handle a zero-length item, which allows remote attackers to cause a denial of service (infinite loop, and CPU and memory consumption) via a crafted packet.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Wireshark: 1.8.0 - 1.8.7

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External links
https://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-assa_r3.c?r1=49744&r2=49743&pathrev=49744
https://anonsvn.wireshark.org/viewvc?view=revision&revision=49744
https://lists.opensuse.org/opensuse-updates/2013-06/msg00194.html
https://lists.opensuse.org/opensuse-updates/2013-06/msg00196.html
https://secunia.com/advisories/53762
https://secunia.com/advisories/54425
https://www.gentoo.org/security/en/glsa/glsa-201308-05.xml
https://www.securityfocus.com/bid/60503
https://www.wireshark.org/docs/relnotes/wireshark-1.8.8.html
https://www.wireshark.org/security/wnpa-sec-2013-38.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8764
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16873

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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.