April 2006
Two Gentoo Linux Security Advisories: 1. GLSA 200604-09 - Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service 2. GLSA 200604-10 - zgv, xzgv: Heap overflow
ID: 00302
Ref: 300/2006
Date: 21 April 2006:11:33:27
Version: 1
Title: Two Gentoo Linux Security Advisories: 1. GLSA 200604-09 - Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service 2. GLSA 200604-10 - zgv, xzgv: Heap overflow
Abstract:
Vendors affected: Gentoo
Operating systems affected: Gentoo
Applications affected: Gentoo
Title
=====
Two Gentoo Linux Security Advisories:
1. GLSA 200604-09 - Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service
2. GLSA 200604-10 - zgv, xzgv: Heap overflow
Detail
======
1. Cyrus-SASL contains an unspecified vulnerability in the DIGEST-MD5
process that could lead to a Denial of Service.
2. Andrea Barisani of Gentoo Linux discovered xzgv and zgv allocate
insufficient memory when rendering images with more than 3 output
components, such as images using the YCCK or CMYK colour space. When
xzgv or zgv attempt to render the image, data from the image overruns a
heap allocated buffer.
1.
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Gentoo Linux Security Advisory GLSA 200604-09
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http://security.gentoo.org/
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Severity: Normal
Title: Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service
Date: April 21, 2006
Bugs: #129523
ID: 200604-09
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Synopsis
========
Cyrus-SASL contains a vulnerability in the DIGEST-MD5 process that
could lead to a Denial of Service.
Background
==========
Cyrus-SASL is an implementation of the Simple Authentication and
Security Layer.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/cyrus-sasl < 2.1.21-r2 >= 2.1.21-r2
Description
===========
Cyrus-SASL contains an unspecified vulnerability in the DIGEST-MD5
process that could lead to a Denial of Service.
Impact
======
An attacker could possibly exploit this vulnerability by sending
specially crafted data stream to the Cyrus-SASL server, resulting in a
Denial of Service even if the attacker is not able to authenticate.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Cyrus-SASL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/cyrus-sasl-2.1.21-r2"
References
==========
[ 1 ] CVE-2006-1721
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1721
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200604-09.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 200604-10
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http://security.gentoo.org/
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Severity: Normal
Title: zgv, xzgv: Heap overflow
Date: April 21, 2006
Bugs: #127008
ID: 200604-10
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Synopsis
========
xzgv and zgv attempt to decode JPEG images within the CMYK/YCCK colour
space incorrectly, potentially resulting in the execution of arbitrary
code.
Background
==========
xzgv and zgv are picture viewing utilities with a thumbnail based file
selector.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-gfx/xzgv < 0.8-r2 >= 0.8-r2
2 media-gfx/zgv < 5.8 >= 5.8
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------
Description
===========
Andrea Barisani of Gentoo Linux discovered xzgv and zgv allocate
insufficient memory when rendering images with more than 3 output
components, such as images using the YCCK or CMYK colour space. When
xzgv or zgv attempt to render the image, data from the image overruns a
heap allocated buffer.
Impact
======
An attacker may be able to construct a malicious image that executes
arbitrary code with the permissions of the xzgv or zgv user when
attempting to render the image.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All xzgv users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/xzgv-0.8-r2"
All zgv users should also upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/zgv-5.8"
References
==========
[ 1 ] CVE-2006-1060
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1060
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200604-10.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