The dissect_clnp function in epan/dissectors/packet-clnp.c in the CLNP dissector in Wireshark 1.6.x before 1.6.13 and 1.8.x before 1.8.5 does not properly manage an offset variable, which allows remote attackers to cause a denial of service (infinite loop or application crash) via a malformed packet.

References

• https://nvd.nist.gov/vuln/detail/CVE-2013-1582
• https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7871
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16426
• http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-clnp.c?r1=45646&r2=45645&pathrev=45646
• http://anonsvn.wireshark.org/viewvc?view=revision&revision=45646
• http://lists.opensuse.org/opensuse-updates/2013-02/msg00028.html
• http://lists.opensuse.org/opensuse-updates/2013-02/msg00037.html
• http://www.debian.org/security/2013/dsa-2625
• http://www.wireshark.org/security/wnpa-sec-2013-02.html