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Gentoo Linux Security Advisory GLSA 200712-15 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: libexif: Multiple vulnerabilities |
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Date: December 29, 2007 |
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Bugs: #202350 |
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ID: 200712-15 |
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Synopsis |
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======== |
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|
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Two vulnerabilities in libexif possibly allow for the execution of |
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arbitrary code or a Denial of Service. |
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|
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Background |
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========== |
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|
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libexif is a library for parsing, editing and saving Exif metadata from |
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images. Exif, the Exchangeable image file format, specifies the |
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addition of metadata tags to JPEG, TIFF and RIFF 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-libs/libexif < 0.6.16-r1 >= 0.6.16-r1 |
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|
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Description |
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=========== |
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|
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Meder Kydyraliev (Google Security) discovered an integer overflow |
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vulnerability in the exif_data_load_data_thumbnail() function leading |
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to a memory corruption (CVE-2007-6352) and an infinite recursion in the |
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exif_loader_write() function (CVE-2007-6351). |
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|
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Impact |
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====== |
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|
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An attacker could entice the user of an application making use of |
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libexif to load an image file with specially crafted Exif tags, |
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possibly resulting in the execution of arbitrary code with the |
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privileges of the user running the application or a Denial of Service. |
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|
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Workaround |
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========== |
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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 libexif users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-libs/libexif-0.6.16-r1" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2007-6351 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6351 |
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[ 2 ] CVE-2007-6352 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6352 |
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|
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Availability |
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============ |
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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-200712-15.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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|
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Copyright 2007 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/2.5 |
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