The ip_evictor function in ip_fragment.c in libnids before 1.24, as used in dsniff and possibly other products, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via crafted fragmented packets.

References

• https://nvd.nist.gov/vuln/detail/CVE-2010-0751
• https://exchange.xforce.ibmcloud.com/vulnerabilities/57428
• http://freefr.dl.sourceforge.net/project/libnids/libnids/1.24/libnids-1.24.releasenotes.txt
• http://lists.fedoraproject.org/pipermail/package-announce/2010-April/038375.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-April/038388.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-April/038410.html
• http://secunia.com/advisories/39225
• http://secunia.com/advisories/39249
• http://www.securityfocus.com/bid/39142
• http://www.vupen.com/english/advisories/2010/0777
• http://www.vupen.com/english/advisories/2010/0791
• http://xorl.wordpress.com/2010/04/04/libnids-ip-fragmentation-remote-null-pointer-dereference/