Fedora 19 : lighttpd-1.4.32-1.fc19 (2013-15345)

This script is Copyright (C) 2013-2015 Tenable Network Security, Inc.


Synopsis :

The remote Fedora host is missing a security update.

Description :

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.

See also :

http://redmine.lighttpd.net/issues/2413
http://www.nessus.org/u?dec5b23a
https://bugzilla.redhat.com/show_bug.cgi?id=878914
https://bugzilla.redhat.com/show_bug.cgi?id=878915
http://www.nessus.org/u?c204bc0a

Solution :

Update the affected lighttpd package.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.3
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Fedora Local Security Checks

Nessus Plugin ID: 69775 ()

Bugtraq ID: 56619

CVE ID: CVE-2012-5533

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