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Gentoo: tcpdump denial of service
Posted by LinuxSecurity.com Team
A vulnerability exists in the parsing of ISAKMP packets (UDP port 500) that allows an attacker to force TCPDUMP into an infinite loop upon receipt of a specially crafted packet.
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GENTOO LINUX SECURITY ANNOUNCEMENT 200303-5
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PACKAGE : tcpdump
SUMMARY : remote dos
DATE : 2003-03-05 10:19 UTC
EXPLOIT : remote
VERSIONS AFFECTED : <3.7.2
FIXED VERSION : =>3.7.2
CVE : CAN-2003-0108
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- From advisory:
"A vulnerability exists in the parsing of ISAKMP packets (UDP port 500)
that allows an attacker to force TCPDUMP into an infinite loop upon
receipt of a specially crafted packet."
Read the full advisory at:
http://www.idefense.com/advisory/02.27.03.txt
SOLUTION
It is recommended that all Gentoo Linux users who are running
net-analyzer/tcpdump upgrade to tcpdump-3.7.2 as follows:
emerge sync
emerge -u tcpdump
emerge clean
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aliz@gentoo.org - GnuPG key is available at http://cvs.gentoo.org/~aliz
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