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Gentoo Linux Security Advisory GLSA 200511-14 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: GTK+ 2, GdkPixbuf: Multiple XPM decoding vulnerabilities |
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Date: November 16, 2005 |
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Bugs: #112608 |
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ID: 200511-14 |
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Synopsis |
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======== |
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|
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The GdkPixbuf library, that is also included in GTK+ 2, contains |
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vulnerabilities that could lead to a Denial of Service or the |
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execution of arbitrary code. |
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|
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Background |
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========== |
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|
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GTK+ (the GIMP Toolkit) is a toolkit for creating graphical user |
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interfaces. The GdkPixbuf library provides facilities for image |
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handling. It is available as a standalone library and also packaged |
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with GTK+ 2. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 x11-libs/gtk+ < 2.8.6-r1 >= 2.8.6-r1 |
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*>= 2.6.10-r1 |
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< 2.0 |
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2 media-libs/gdk-pixbuf < 0.22.0-r5 >= 0.22.0-r5 |
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------------------------------------------------------------------- |
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2 affected packages on all of their supported architectures. |
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------------------------------------------------------------------- |
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|
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Description |
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=========== |
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|
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iDEFENSE reported a possible heap overflow in the XPM loader |
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(CVE-2005-3186). Upon further inspection, Ludwig Nussel discovered two |
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additional issues in the XPM processing functions : an integer overflow |
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(CVE-2005-2976) that affects only gdk-pixbuf, and an infinite loop |
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(CVE-2005-2975). |
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|
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Impact |
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====== |
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|
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Using a specially crafted XPM image an attacker could cause an affected |
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application to enter an infinite loop or trigger the overflows, |
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potentially allowing the execution of arbitrary code. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All GTK+ 2 users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose x11-libs/gtk+ |
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|
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All GdkPixbuf users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-libs/gdk-pixbuf-0.22.0-r5" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2005-2975 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2975 |
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[ 2 ] CVE-2005-2976 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2976 |
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[ 3 ] CVE-2005-3186 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3186 |
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[ 4 ] iDefense Security Advisory 11.15.05 |
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http://www.idefense.com/application/poi/display?id=339&type=vulnerabilities |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200511-14.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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Copyright 2005 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.0 |
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