Vulnerability identifier: #VU45254

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2011-1138

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 service disruption.

Off-by-one error in the dissect_6lowpan_iphc function in packet-6lowpan.c in Wireshark 1.4.0 through 1.4.3 on 32-bit platforms allows remote attackers to cause a denial of service (application crash) via a malformed 6LoWPAN IPv6 packet.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Wireshark: 1.4.0 - 1.4.3

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External links
http://anonsvn.wireshark.org/viewvc?view=rev&revision=36036
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055364.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055650.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055664.html
http://secunia.com/advisories/43759
http://secunia.com/advisories/44169
http://www.kb.cert.org/vuls/id/215900
http://www.securityfocus.com/bid/46636
http://www.securitytracker.com/id?1025148
http://www.vupen.com/english/advisories/2011/0626
http://www.wireshark.org/docs/relnotes/wireshark-1.4.4.html
http://www.wireshark.org/security/wnpa-sec-2011-04.html
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5722
http://exchange.xforce.ibmcloud.com/vulnerabilities/65783
http://hermes.opensuse.org/messages/8086844
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16299

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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.