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 Posted: Fri Jul 03, 2009 10:10 am
=3D=3D=3D=3D=3D=3D=3D=3D libwmf bundles an old GD version which contains a "use-after-free" vulnerability.
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Gentoo Linux Security Advisory GLSA 200907-01
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http://security.gentoo.org/
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Severity: Normal
Title: libwmf: User-assisted execution of arbitrary code
Date: July 02, 2009
Bugs: #268161
ID: 200907-01
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Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D
libwmf bundles an old GD version which contains a "use-after-free"
vulnerability.
Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
libwmf is a library for converting WMF files.
Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/libwmf < 0.2.8.4-r3 >=3D 0.2.8.4-r3
Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
The embedded fork of the GD library introduced a "use-after-free"
vulnerability in a modification which is specific to libwmf.
Impact
=3D=3D=3D=3D=3D=3D
A remote attacker could entice a user to open a specially crafted WMF
file, possibly resulting in the execution of arbitrary code with the
privileges of the user running the application, or a Denial of Service.
Workaround
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
There is no known workaround at this time.
Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
All libwmf users should upgrade to the latest version which no longer
builds the GD library:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dmedia-libs/libwmf-0.2.8.4-r3"
References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] CVE-2009-1364
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-1364
Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200907-01.xml
Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D
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
=3D=3D=3D=3D=3D=3D=3D
Copyright 2009 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/2.5
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Posted: Fri Jul 03, 2009 10:11 am
=3D=3D=3D=3D=3D=3D=3D=3D Two vulnerabilities in ModSecurity might lead to a Denial of Service.
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Gentoo Linux Security Advisory GLSA 200907-02
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http://security.gentoo.org/
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Severity: Normal
Title: ModSecurity: Denial of Service
Date: July 02, 2009
Bugs: #262302
ID: 200907-02
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Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D
Two vulnerabilities in ModSecurity might lead to a Denial of Service.
Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
ModSecurity is a popular web application firewall for the Apache HTTP
server.
Affected packages
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-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-apache/mod_security < 2.5.9 >=3D 2.5.9
Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Multiple vulnerabilities were discovered in ModSecurity:
* Juan Galiana Lara of ISecAuditors discovered a NULL pointer
dereference when processing multipart requests without a part header
name (CVE-2009-1902).
* Steve Grubb of Red Hat reported that the "PDF XSS protection"
feature does not properly handle HTTP requests to a PDF file that do
not use the GET method (CVE-2009-1903).
Impact
=3D=3D=3D=3D=3D=3D
A remote attacker might send requests containing specially crafted
multipart data or send certain requests to access a PDF file, possibly
resulting in a Denial of Service (crash) of the Apache HTTP daemon.
NOTE: The PDF XSS protection is not enabled by default.
Workaround
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
There is no known workaround at this time.
Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
All ModSecurity users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dwww-apache/mod_security-2.5.9"
References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] CVE-2009-1902
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-1902
[ 2 ] CVE-2009-1903
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-1903
Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200907-02.xml
Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D
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
=3D=3D=3D=3D=3D=3D=3D
Copyright 2009 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/2.5
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