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Gentoo Linux Security Advisory GLSA 200601-17 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Xpdf, Poppler, GPdf, libextractor, pdftohtml: Heap |
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overflows |
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Date: January 30, 2006 |
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Bugs: #117481, #117494, #117495, #115789, #118665 |
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ID: 200601-17 |
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Synopsis |
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======== |
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|
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Xpdf, Poppler, GPdf, libextractor and pdftohtml are vulnerable to |
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integer overflows that may be exploited to execute arbitrary code. |
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|
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Background |
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========== |
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|
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Xpdf is a PDF file viewer that runs under the X Window System. Poppler |
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is a PDF rendering library based on the Xpdf 3.0 code base. GPdf is a |
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PDF file viewer for the GNOME 2 platform, also based on Xpdf. |
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libextractor is a library which includes Xpdf code to extract arbitrary |
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meta-data from files. pdftohtml is a utility to convert PDF files to |
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HTML or XML formats that makes use of Xpdf code to decode PDF 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 app-text/xpdf < 3.01-r5 >= 3.01-r5 |
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2 app-text/poppler < 0.4.3-r4 >= 0.4.3-r4 |
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3 app-text/gpdf < 2.10.0-r3 >= 2.10.0-r3 |
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4 media-libs/libextractor < 0.5.9 >= 0.5.9 |
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5 app-text/pdftohtml < 0.36-r4 Vulnerable! |
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------------------------------------------------------------------- |
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NOTE: Certain packages are still vulnerable. Users should migrate |
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to another package if one is available or wait for the |
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existing packages to be marked stable by their |
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architecture maintainers. |
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------------------------------------------------------------------- |
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5 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 has reported some integer overflows in Xpdf when attempting |
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to calculate buffer sizes for memory allocation, leading to a heap |
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overflow and a potential infinite loop when handling malformed input |
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files. |
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|
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Impact |
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====== |
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|
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By sending a specially crafted PDF file to a victim, an attacker could |
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cause an overflow, potentially resulting in the execution of arbitrary |
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code with the privileges of the user running the application. |
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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 Xpdf users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-text/xpdf-3.01-r5" |
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All Poppler users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-text/poppler-0.4.3-r4" |
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All GPdf users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-text/gpdf-2.10.0-r3" |
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All libextractor users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-libs/libextractor-0.5.9" |
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All pdftohtml users should migrate to the latest stable version of |
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Poppler. |
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References |
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========== |
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[ 1 ] CVE-2005-3627 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3627 |
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[ 2 ] CVE-2005-3626 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3626 |
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[ 3 ] CVE-2005-3625 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3625 |
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[ 4 ] CVE-2005-3624 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3624 |
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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-200601-17.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 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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|
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http://creativecommons.org/licenses/by-sa/2.0 |
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