TCPDump: Decoding routines Denial of Service vulnerability

TCPDump: Decoding routines Denial of Service vulnerability A flaw in the decoding of network packets renders TCPDump vulnerable to a remote Denial of Service attack. tcpdump 2005-05-09 2005-06-12 90541 95349 remote 3.8.3-r3 3.8.3-r3

TCPDump is a tool for network monitoring and data acquisition.

TCPDump improperly handles and decodes ISIS (CAN-2005-1278), BGP (CAN-2005-1267, CAN-2005-1279), LDP (CAN-2005-1279) and RSVP (CAN-2005-1280) packets. TCPDump might loop endlessly after receiving malformed packets.

A malicious remote attacker can exploit the decoding issues for a Denial of Service attack by sending specially crafted packets, possibly causing TCPDump to loop endlessly.

There is no known workaround at this time.

All TCPDump users should upgrade to the latest available version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-analyzer/tcpdump-3.8.3-r3"

CAN-2005-1267 CAN-2005-1278 CAN-2005-1279 CAN-2005-1280 jaervosz DerCorny jaervosz