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Gentoo Linux Security Advisory GLSA 200511-03 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: giflib: Multiple vulnerabilities |
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Date: November 04, 2005 |
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Bugs: #109997 |
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ID: 200511-03 |
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Synopsis |
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======== |
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|
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giflib may dereference NULL or write out of bounds when processing |
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malformed images, potentially resulting in Denial of Service or |
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arbitrary code execution. |
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Background |
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========== |
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giflib is a library for reading and writing GIF images. |
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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 media-libs/giflib < 4.1.4 >= 4.1.4 |
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Description |
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=========== |
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|
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Chris Evans and Daniel Eisenbud independently discovered two |
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out-of-bounds memory write operations and a NULL pointer dereference in |
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giflib. |
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Impact |
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====== |
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|
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An attacker could craft a malicious GIF image and entice users to load |
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it using an application making use of the giflib library, resulting in |
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an application crash or potentially the execution of arbitrary code. |
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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 giflib users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-libs/giflib-4.1.4" |
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References |
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========== |
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[ 1 ] CVE-2005-2974 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2974 |
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[ 2 ] CVE-2005-3350 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3350 |
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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-200511-03.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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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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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.0 |
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