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Gentoo Linux Security Advisory GLSA 200906-01 |
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http://security.gentoo.org/ |
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Severity: Low |
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Title: libpng: Information disclosure |
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Date: June 27, 2009 |
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Bugs: #272970 |
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ID: 200906-01 |
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Synopsis |
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======== |
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|
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A vulnerability has been discovered in libpng that allows for |
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information disclosure. |
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|
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Background |
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========== |
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|
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libpng is the official PNG reference library used to read, write and |
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manipulate PNG images. |
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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-libs/libpng < 1.2.37 >= 1.2.37 |
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|
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Description |
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=========== |
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|
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Jeff Phillips discovered that libpng does not properly parse 1-bit |
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interlaced images with width values that are not divisible by 8, which |
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causes libpng to include uninitialized bits in certain rows of a PNG |
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file. |
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|
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Impact |
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====== |
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|
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A remote attacker might entice a user to open a specially crafted PNG |
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file, possibly resulting in the disclosure of sensitive memory |
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portions. |
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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 libpng users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.37" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2009-2042 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2042 |
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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-200906-01.xml |
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|
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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 2009 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/2.5 |
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