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Gentoo Linux Security Advisory GLSA 200908-03 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: libTIFF: User-assisted execution of arbitrary code |
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Date: August 07, 2009 |
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Bugs: #276339, #276988 |
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ID: 200908-03 |
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Synopsis |
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======== |
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|
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Multiple boundary checking vulnerabilities in libTIFF may allow for the |
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remote 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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libTIFF provides support for reading and manipulating TIFF (Tagged |
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Image File Format) 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/tiff < 3.8.2-r8 >= 3.8.2-r8 |
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|
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Description |
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=========== |
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|
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Two vulnerabilities have been reported in libTIFF: |
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|
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* wololo reported a buffer underflow in the LZWDecodeCompat() |
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function (CVE-2009-2285). |
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|
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* Tielei Wang of ICST-ERCIS, Peking University reported two integer |
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overflows leading to heap-based buffer overflows in the tiff2rgba and |
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rgb2ycbcr tools (CVE-2009-2347). |
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|
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Impact |
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====== |
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|
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A remote attacker could entice a user to open a specially crafted TIFF |
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file with an application making use of libTIFF or the tiff2rgba and |
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rgb2ycbcr tools, possibly resulting in the execution of arbitrary code |
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with the privileges of the user running the application. |
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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 libTIFF users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-libs/tiff-3.8.2-r8" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2009-2285 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2285 |
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[ 2 ] CVE-2009-2347 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2347 |
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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-200908-03.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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https://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 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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