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Two vulnerabilities have been discovered in Lighttpd, each allowing for a Denial of Service.
Lighttpd is a lightweight HTTP web server.
Robert Jakabosky discovered an infinite loop triggered by a connection abort when Lighttpd processes carriage return and line feed sequences. Marcus Rueckert discovered a NULL pointer dereference when a server running Lighttpd tries to access a file with a mtime of 0.
A remote attacker could upload a specially crafted file to the server or send a specially crafted request and then abort the connection, possibly resulting in a crash or a Denial of Service by CPU consumption.
There is no known workaround at this time.
All Lighttpd users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/lighttpd-1.4.14"
[ 1 ] CVE-2007-1869
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1869 [ 2 ] CVE-2007-1870
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
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Copyright 2007 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
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