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Red Hat Enterprise Linux 6 RHSA-2012:1418-01 Critical Kdelibs Overflow

red hat
Calendar Grey October 30, 2012
Dist Redhat Esm H88
Important security patch for kdelibs on Red Hat Enterprise Linux 6 rectifying major flaws that impact user safety.
Updated kdelibs packages that fix two security issues are now available for Red Hat Enterprise Linux 6 FasTrack

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258

Summary

The kdelibs packages provide libraries for the K Desktop Environment (KDE). Konqueror is a web browser.
A heap-based buffer overflow flaw was found in the way the CSS (Cascading Style Sheets) parser in kdelibs parsed the location of the source for font faces. A web page containing malicious content could cause an application using kdelibs (such as Konqueror) to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2012-4512)
A heap-based buffer over-read flaw was found in the way kdelibs calculated canvas dimensions for large images. A web page containing malicious content could cause an application using kdelibs to crash or disclose portions of its memory. (CVE-2012-4513)
Users should upgrade to these updated packages, which contain backported patches to correct these issues. The desktop must be restarted (log out, then log back in) for this update to take effect.

Topics%20covered

Topics Covered

security advisory buffer overflow critical Red Hat Enterprise Linux kdelibs heap over-read

References

https://access.redhat.com/security/cve/CVE-2012-4512 https://access.redhat.com/security/cve/CVE-2012-4513 https://access.redhat.com/security/updates/classification/#critical https://www.redhat.com/en/technologies/all-products

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: kdelibs-4.3.4-19.el6.i686.rpm kdelibs-common-4.3.4-19.el6.i686.rpm kdelibs-debuginfo-4.3.4-19.el6.i686.rpm
x86_64: kdelibs-4.3.4-19.el6.i686.rpm kdelibs-4.3.4-19.el6.x86_64.rpm kdelibs-common-4.3.4-19.el6.x86_64.rpm kdelibs-debuginfo-4.3.4-19.el6.i686.rpm kdelibs-debuginfo-4.3.4-19.el6.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386: kdelibs-debuginfo-4.3.4-19.el6.i686.rpm kdelibs-devel-4.3.4-19.el6.i686.rpm
noarch: kdelibs-apidocs-4.3.4-19.el6.noarch.rpm
x86_64: kdelibs-debuginfo-4.3.4-19.el6.i686.rpm kdelibs-debuginfo-4.3.4-19.el6.x86_64.rpm kdelibs-devel-4.3.4-19.el6.i686.rpm kdelibs-devel-4.3.4-19.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
noarch: kdelibs-apidocs-4.3.4-19.el6.noarch.rpm
x86_64: kdelibs-4.3.4-19.el6.i686.rpm kdelibs-4.3.4-19.el6.x86_64.rpm kdelibs-common-4.3.4-19.el6.x86_64.rpm kdelibs-debuginfo-4.3.4-19.el6.i686.rpm kdelibs-debuginfo-4.3.4-19.el6.x86_64.rpm kdelibs-devel-4.3.4-19.el6.i686.rpm kdelibs-devel-4.3.4-19.el6.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
i386: kdelibs-4.3.4-19.el6.i686.rpm kdelibs-common-4.3.4-19.el6.i686.rpm kdelibs-debuginfo-4.3.4-19.el6.i686.rpm kdelibs-devel-4.3.4-19.el6.i686.rpm
noarch:

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2012:1418-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:1418.html
Issue date: 2012-10-30

Topic

Updated kdelibs packages that fix two security issues are now available forRed Hat Enterprise Linux 6 FasTrack.The Red Hat Security Response Team has rated this update as having criticalsecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.

Topics%20covered

Topics Covered

security advisory buffer overflow critical Red Hat Enterprise Linux kdelibs heap over-read

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64

Bugs Fixed

865741 - CVE-2012-4513 kdelibs: Heap-based buffer over-read when calculating dimensions of the canvas within the scale loop

865779 - CVE-2012-4512 kdelibs: Heap-based buffer overflow when parsing location of a font face source

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