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[ GLSA 200705-07 ] Lighttpd: Two Denials of Service
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PostPosted: Mon May 07, 2007 10:26 pm    Post subject: [ GLSA 200705-07 ] Lighttpd: Two Denials of Service Reply with quote

Gentoo Linux Security Advisory

Title: Lighttpd: Two Denials of Service (GLSA 200705-07)
Severity: normal
Exploitable: remote
Date: May 07, 2007
Bug(s): #174043
ID: 200705-07

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: www-servers/lighttpd
Vulnerable: < 1.4.14
Unaffected: >= 1.4.14
Architectures: All supported architectures


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:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/lighttpd-1.4.14"


References

CVE-2007-1869
CVE-2007-1870
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