Fedora 18 : lighttpd-1.4.32-1.fc18 (2013-15344)

Medium Nessus Plugin ID 69774


The remote Fedora host is missing a security update.


One important denial of service (in 1.4.31) fix: CVE-2012-5533.

A flaw was found in lighttpd version 1.4.31 that could be exploited by a remote user to cause a denial of service condition in lighttpd. A client could send a malformed Connection header to lighttpd (such as 'Connection: TE,,Keep-Alive'), which would cause lighttpd to enter an endless loop, detecting an empty token but not incrementing the current string position, causing it to continually read ',' over and over.

This flaw was introduced in 1.4.31 [1] when an 'invalid read' bug was fixed [2].

[1] http://redmine.lighttpd.net/projects/lighttpd/repository/revisions/283 0/diff/ [2] http://redmine.lighttpd.net/issues/2413

Acknowledgement :

Red Hat would like to thank Stefan Buhler for reporting this issue.
Upstream acknowledges Jesse Sipprell from McClatchy Interactive, Inc.
as the original reporter.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected lighttpd package.

See Also






Plugin Details

Severity: Medium

ID: 69774

File Name: fedora_2013-15344.nasl

Version: $Revision: 1.4 $

Type: local

Agent: unix

Published: 2013/09/04

Modified: 2015/10/19

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:lighttpd, cpe:/o:fedoraproject:fedora:18

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2013/08/26

Reference Information

CVE: CVE-2012-5533

BID: 56619

FEDORA: 2013-15344