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Gentoo Linux Security Advisory GLSA 200603-18 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Pngcrush: Buffer overflow |
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Date: March 21, 2006 |
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Bugs: #123286 |
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ID: 200603-18 |
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Synopsis |
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======== |
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|
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Pngcrush is vulnerable to a buffer overflow which could potentially |
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lead to the execution of arbitrary code. |
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Background |
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========== |
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|
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Pngcrush is an optimizer for PNG files. |
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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 media-gfx/pngcrush < 1.6.2 >= 1.6.2 |
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|
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Description |
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=========== |
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|
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Carsten Lohrke of Gentoo Linux reported that Pngcrush contains a |
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vulnerable version of zlib (GLSA 200507-19). |
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Impact |
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====== |
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|
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By creating a specially crafted data stream, attackers can overwrite |
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data structures for applications that use Pngcrush, resulting in a |
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Denial of Service and potentially arbitrary code execution. |
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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 Pngcrush users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-gfx/pngcrush-1.6.2" |
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|
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References |
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========== |
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|
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[ 1 ] GLSA 200507-19 |
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http://www.gentoo.org/security/en/glsa/glsa-200507-19.xml |
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[ 2 ] CVE-2005-1849 |
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http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1849 |
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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-200603-18.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 2006 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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