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Gentoo Linux Security Advisory GLSA 200410-11 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: tiff: Buffer overflows in image decoding |
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Date: October 13, 2004 |
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ID: 200410-11 |
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Synopsis |
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======== |
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|
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Multiple heap-based overflows have been found in the tiff library image |
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decoding routines, potentially allowing to execute arbitrary code with |
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the rights of the user viewing a malicious image. |
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|
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Background |
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========== |
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|
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The tiff library contains encoding and decoding routines for the Tag |
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Image File Format. It is called by numerous programs, including GNOME |
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and KDE, to help in displaying TIFF images. xv is a multi-format image |
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manipulation utility that is statically linked to the tiff library. |
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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 < 3.6.1-r2 >= 3.6.1-r2 |
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2 media-gfx/xv <= 3.10a-r7 >= 3.10a-r8 |
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------------------------------------------------------------------- |
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2 affected packages on all of their supported architectures. |
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------------------------------------------------------------------- |
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|
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Description |
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=========== |
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|
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Chris Evans found heap-based overflows in RLE decoding routines in |
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tif_next.c, tif_thunder.c and potentially tif_luv.c. |
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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 view a carefully crafted TIFF |
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image file, which would potentially lead to execution of arbitrary code |
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with the rights of the user viewing the image. This affects any program |
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that makes use of the tiff library, including GNOME and KDE web |
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browsers or mail readers. |
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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 tiff library users should upgrade to the latest version: |
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# emerge sync |
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# emerge -pv ">=media-libs/tiff-3.6.1-r2" |
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# emerge ">=media-libs/tiff-3.6.1-r2" |
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|
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xv makes use of the tiff library and needs to be recompiled to receive |
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the new patched version of the library. All xv users should also |
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upgrade to the latest version: |
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# emerge sync |
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|
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# emerge -pv ">=media-gfx/xv-3.10a-r8" |
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# emerge ">=media-gfx/xv-3.10a-r8" |
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|
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References |
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========== |
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|
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[ 1 ] CAN-2004-0803 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0803 |
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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-200410-11.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 2004 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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|
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http://creativecommons.org/licenses/by-sa/1.0 |
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