GLSA-200705-24 : libpng: Denial of Service

This script is Copyright (C) 2007-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-200705-24
(libpng: Denial of Service)

Mats Palmgren fixed an error in file pngrutil.c in which the trans[]
array might be not allocated because of images with a bad tRNS chunk
CRC value.

Impact :

A remote attacker could craft an image that when processed or viewed by
an application using libpng causes the application to terminate
abnormally.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200705-24.xml

Solution :

Please note that due to separate bugs in libpng 1.2.17, Gentoo does not
provide libpng-1.2.17 but libpng-1.2.18. All libpng users should
upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=media-libs/libpng-1.2.18'

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 25383 (gentoo_GLSA-200705-24.nasl)

Bugtraq ID:

CVE ID: CVE-2007-2445