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Gentoo Linux Security Advisory GLSA 200602-01 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: GStreamer FFmpeg plugin: Heap-based buffer overflow |
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Date: February 05, 2006 |
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Bugs: #119512 |
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ID: 200602-01 |
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Synopsis |
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======== |
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|
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The GStreamer FFmpeg plugin is vulnerable to a buffer overflow that may |
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be exploited by attackers 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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The GStreamer FFmpeg plugin uses code from the FFmpeg library to |
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provide fast colorspace conversion and multimedia decoders to the |
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GStreamer open source media framework. |
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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-plugins/gst-plugins-ffmpeg < 0.8.7-r1 >= 0.8.7-r1 |
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|
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Description |
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=========== |
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|
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The GStreamer FFmpeg plugin contains derived code from the FFmpeg |
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library, which is vulnerable to a heap overflow in the |
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"avcodec_default_get_buffer()" function discovered by Simon Kilvington |
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(see GLSA 200601-06). |
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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 run an application using the |
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GStreamer FFmpeg plugin on a maliciously crafted PIX_FMT_PAL8 format |
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image file (like PNG images), possibly leading to the execution of |
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arbitrary code with the permissions of the user running the |
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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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All GStreamer FFmpeg plugin users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-plugins/gst-plugins-ffmpeg-0.8.7-r1" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2005-4048 |
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http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4048 |
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[ 2 ] GLSA 200601-06 |
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http://www.gentoo.org/security/en/glsa/glsa-200601-06.xml |
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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-200602-01.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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|
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License |
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======= |
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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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|
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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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http://creativecommons.org/licenses/by-sa/2.0 |
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