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Gentoo Linux Security Advisory GLSA 200711-22 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Poppler, KDE: User-assisted execution of arbitrary code |
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Date: November 18, 2007 |
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Bugs: #196735, #198409 |
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ID: 200711-22 |
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Synopsis |
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======== |
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|
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Poppler and various KDE components are vulnerable to multiple memory |
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management issues possibly resulting in the execution of arbitrary |
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code. |
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|
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Background |
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========== |
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|
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Poppler is a cross-platform PDF rendering library originally based on |
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Xpdf. KOffice is an integrated office suite for KDE. KWord is the |
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KOffice word processor. KPDF is a KDE-based PDF viewer included in the |
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kdegraphics package. |
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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/poppler < 0.6.1-r1 >= 0.6.1-r1 |
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2 kde-base/kpdf < 3.5.8-r1 *>= 3.5.7-r3 |
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>= 3.5.8-r1 |
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3 kde-base/kdegraphics < 3.5.8-r1 *>= 3.5.7-r3 |
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>= 3.5.8-r1 |
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4 app-office/kword < 1.6.3-r2 >= 1.6.3-r2 |
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5 app-office/koffice < 1.6.3-r2 >= 1.6.3-r2 |
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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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Alin Rad Pop (Secunia Research) discovered several vulnerabilities in |
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the "Stream.cc" file of Xpdf: An integer overflow in the |
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DCTStream::reset() method and a boundary error in the |
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CCITTFaxStream::lookChar() method, both leading to heap-based buffer |
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overflows (CVE-2007-5392, CVE-2007-5393). He also discovered a boundary |
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checking error in the DCTStream::readProgressiveDataUnit() method |
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causing memory corruption (CVE-2007-4352). Note: Gentoo's version of |
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Xpdf is patched to use the Poppler library, so the update to Poppler |
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will also fix Xpdf. |
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|
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Impact |
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====== |
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|
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By enticing a user to view or process a specially crafted PDF file with |
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KWord or KPDF or a Poppler-based program such as Gentoo's viewers Xpdf, |
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ePDFView, and Evince or the CUPS printing system, a remote attacker |
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could cause an overflow, potentially resulting in the execution of |
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arbitrary code 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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|
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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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|
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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-0.6.1-r1" |
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|
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All KPDF users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=kde-base/kpdf-3.5.7-r3" |
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|
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All KDE Graphics Libraries users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=kde-base/kdegraphics-3.5.7-r3" |
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|
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All KWord users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-office/kword-1.6.3-r2" |
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|
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All KOffice users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-office/koffice-1.6.3-r2" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2007-4352 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4352 |
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[ 2 ] CVE-2007-5392 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5392 |
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[ 3 ] CVE-2007-5393 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5393 |
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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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|
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http://security.gentoo.org/glsa/glsa-200711-22.xml |
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|
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Concerns? |
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========= |
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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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|
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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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