January 2006
Two Gentoo Linux Security Advisories: 1. GLSA 200601-07 - ClamAV: Remote execution of arbitrary code 2. GLSA 200601-08 - Blender: Heap-based buffer overflow
ID: 00042
Ref: 41/2006
Date: 13 January 2006:14:26:03
Version: 1
Title: Two Gentoo Linux Security Advisories: 1. GLSA 200601-07 - ClamAV: Remote execution of arbitrary code 2. GLSA 200601-08 - Blender: Heap-based buffer overflow
Abstract:
Vendors affected: Gentoo
Operating systems affected: Gentoo
Applications affected: Gentoo
Title
=====
Two Gentoo Linux Security Advisories:
1. GLSA 200601-07 - ClamAV: Remote execution of arbitrary code
2. GLSA 200601-08 - Blender: Heap-based buffer overflow
Detail
======
1. Zero Day Initiative (ZDI) reported a heap buffer overflow
vulnerability. The vulnerability is due to an incorrect boundary check
of the user-supplied data prior to copying it to an insufficiently
sized memory buffer. The flaw occurs when the application attempts to
handle compressed UPX files.
2. Damian Put has reported a flaw due to an integer overflow in the
"get_bhead()" function, leading to a heap overflow when processing
malformed ".blend" files.
1.
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Gentoo Linux Security Advisory GLSA 200601-07
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http://security.gentoo.org/
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Severity: High
Title: ClamAV: Remote execution of arbitrary code
Date: January 13, 2006
Bugs: #118459
ID: 200601-07
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Synopsis
========
ClamAV is vulnerable to a buffer overflow which may lead to remote
execution of arbitrary code.
Background
==========
ClamAV is a GPL virus scanner.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-antivirus/clamav < 0.88 >= 0.88
Description
===========
Zero Day Initiative (ZDI) reported a heap buffer overflow
vulnerability. The vulnerability is due to an incorrect boundary check
of the user-supplied data prior to copying it to an insufficiently
sized memory buffer. The flaw occurs when the application attempts to
handle compressed UPX files.
Impact
======
For example by sending a maliciously crafted UPX file into a mail
server that is integrated with ClamAV, a remote attacker's supplied
code could be executed with escalated privileges.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All ClamAV users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.88"
References
==========
[ 1 ] CVE-2006-0162
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0162
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200601-07.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2006 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0
2.
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Gentoo Linux Security Advisory GLSA 200601-08
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http://security.gentoo.org/
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Severity: Normal
Title: Blender: Heap-based buffer overflow
Date: January 13, 2006
Bugs: #118163
ID: 200601-08
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Synopsis
========
Blender is vulnerable to a buffer overflow that may be exploited by
attackers to execute arbitrary code.
Background
==========
Blender is an open source software for 3D modeling, animation,
rendering, post-production, interactive creation and playback.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-gfx/blender < 2.40 >= 2.40
Description
===========
Damian Put has reported a flaw due to an integer overflow in the
"get_bhead()" function, leading to a heap overflow when processing
malformed ".blend" files.
Impact
======
A remote attacker could entice a user into opening a specially crafted
".blend" file, resulting in the execution of arbitrary code with the
permissions of the user running Blender.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Blender users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/blender-2.40"
References
==========
[ 1 ] CVE-2005-4470
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4470
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200601-08.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2006 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0