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full-disclosure-uk: [Full-disclosure] [ GLSA 200705-07 ] Lighttp

[Full-disclosure] [ GLSA 200705-07 ] Lighttpd: Two Denials of Service

From: Raphael Marichez <falco_at_nospam>
Date: Mon May 07 2007 - 21:31:26 GMT
To: gentoo-announce@gentoo.org

  • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200705-07
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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



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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