GLSA-200705-24 : libpng: Denial of Service

Medium Nessus Plugin ID 25383


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


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.


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'

See Also

Plugin Details

Severity: Medium

ID: 25383

File Name: gentoo_GLSA-200705-24.nasl

Version: $Revision: 1.12 $

Type: local

Published: 2007/06/04

Modified: 2015/04/13

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:libpng, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2007/05/31

Vulnerability Publication Date: 2007/05/15

Reference Information

CVE: CVE-2007-2445

OSVDB: 36196

GLSA: 200705-24