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Gentoo Linux Security Advisory GLSA 200608-17 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: libwmf: Buffer overflow vulnerability |
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Date: August 10, 2006 |
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Bugs: #139325 |
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ID: 200608-17 |
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Synopsis |
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======== |
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|
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libwmf is vulnerable to an integer overflow potentially resulting in |
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the execution of arbitrary code. |
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Background |
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========== |
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|
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libwmf is a library for reading and converting vector images in |
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Microsoft's native Windows Metafile Format (WMF). |
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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/libwmf < 0.2.8.4 >= 0.2.8.4 |
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Description |
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=========== |
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|
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infamous41md discovered that libwmf fails to do proper bounds checking |
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on the MaxRecordSize variable in the WMF file header. This could lead |
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to an head-based buffer overflow. |
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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 open a specially crafted WMF file, a remote |
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attacker could cause a heap-based buffer overflow and execute arbitrary |
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code with the permissions of the user running the application that uses |
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libwmf. |
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Workaround |
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========== |
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There is no known workaround for this issue. |
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Resolution |
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========== |
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All libwmf users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-libs/libwmf-0.2.8.4" |
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References |
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========== |
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[ 1 ] CVE-2006-3376 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3376 |
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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-200608-17.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/2.5 |
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