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Gentoo Linux Security Advisory GLSA 200705-07
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http://security.gentoo.org/
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Severity: Normal
Title: Lighttpd: Two Denials of Service
Date: May 07, 2007
Bugs: #174043
ID: 200705-07
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Synopsis
========
Two vulnerabilities have been discovered in Lighttpd, each allowing for
a Denial of Service.
Background
==========
Lighttpd is a lightweight HTTP web server.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-servers/lighttpd < 1.4.14 >= 1.4.14
Description
===========
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.
Impact
======
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.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Lighttpd users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/lighttpd-1.4.14"
References
==========
[ 1 ] CVE-2007-1869
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1869
[ 2 ] CVE-2007-1870
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1870
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200705-07.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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