| Descripción: | Description:
The remote host is missing an update to libpng
announced via advisory MDVSA-2010:133.
Multiple vulnerabilities has been found and corrected in libpng:
Memory leak in the png_handle_tEXt function in pngrutil.c in libpng
before 1.2.33 rc02 and 1.4.0 beta36 allows context-dependent attackers
to cause a denial of service (memory exhaustion) via a crafted PNG file
(CVE-2008-6218.
Buffer overflow in pngpread.c in libpng before 1.2.44 and 1.4.x
before 1.4.3, as used in progressive applications, might allow remote
attackers to execute arbitrary code via a PNG image that triggers an
additional data row (CVE-2010-1205).
Memory leak in pngrutil.c in libpng before 1.2.44, and 1.4.x before
1.4.3, allows remote attackers to cause a denial of service (memory
consumption and application crash) via a PNG image containing malformed
Physical Scale (aka sCAL) chunks (CVE-2010-2249).
As a precaution htmldoc has been rebuilt to link against the
system libpng library for CS4 and 2008.0. Latest xulrunner and
mozilla-thunderbird has been patched as a precaution for 2008.0 wheres
on 2009.0 and up the the system libpng library is used instead of the
bundled copy. htmldoc, xulrunner and mozilla-thunderbird packages is
therefore also being provided with this advisory.
Packages for 2008.0 and 2009.0 are provided as of the Extended
Maintenance Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149&products_id=490
The updated packages have been patched to correct these issues.
Affected: 2008.0, 2009.0, 2009.1, 2010.0, 2010.1, Corporate 4.0,
Enterprise Server 5.0
Solution:
To upgrade automatically use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.
https://secure1.securityspace.com/smysecure/catid.html?in=MDVSA-2010:133
Risk factor : High
CVSS Score:
7.5
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