Two new security updates are available for Gentoo Linux:
- [ GLSA 201009-08 ] python-updater: Untrusted search path
- [ GLSA 201009-07 ] libxml2: Denial of Service
[gentoo-announce] [ GLSA 201009-08 ] python-updater: Untrusted search path
- [ GLSA 201009-08 ] python-updater: Untrusted search path
- [ GLSA 201009-07 ] libxml2: Denial of Service
[gentoo-announce] [ GLSA 201009-08 ] python-updater: Untrusted search path
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -[gentoo-announce] [ GLSA 201009-07 ] libxml2: Denial of Service
Gentoo Linux Security Advisory GLSA 201009-08
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: High
Title: python-updater: Untrusted search path
Date: September 21, 2010
Bugs: #288361
ID: 201009-08
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
========
An untrusted search path vulnerability in python-updater might result
in the execution of arbitrary code.
Background
==========
python-updater is a script used to remerge python packages when
changing Python version.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-admin/python-updater < 0.7-r1 >= 0.7-r1
Description
===========
Robert Buchholz of the Gentoo Security Team reported that
python-updater includes the current working directory and
subdirectories in the Python module search path (sys.path) before
calling "import".
Impact
======
A local attacker could entice the root user to run "python-updater"
from a directory containing a specially crafted Python module,
resulting in the execution of arbitrary code with root privileges.
Workaround
==========
Do not run "python-updater" from untrusted working directories.
Resolution
==========
All python-updater users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-admin/python-updater-0.7-r1"
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201009-08.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
https://bugs.gentoo.org.
License
=======
Copyright 2010 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
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 201009-07
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: libxml2: Denial of Service
Date: September 21, 2010
Bugs: #280617
ID: 201009-07
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
========
Multiple Denial of Services vulnerabilities were found in libxml2.
Background
==========
libxml2 is a library to manipulate XML files.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/libxml2 < 2.7.3-r2 >= 2.7.3-r2
Description
===========
The following vulnerabilities were reported after a test with the
Codenomicon XML fuzzing framework:
* Two use-after-free vulnerabilities are possible when parsing a XML
file with Notation or Enumeration attribute types (CVE-2009-2416).
* A stack consumption vulnerability can be triggered via a large
depth of element declarations in a DTD, related to a function
recursion (CVE-2009-2414).
Impact
======
A remote attacker could entice a user or automated system to open a
specially crafted XML document with an application using libxml2
resulting in a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All libxml2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.7.3-r2"
NOTE: This is a legacy GLSA. Updates for all affected architectures are
available since August 30, 2009. It is likely that your system is
already no longer affected by this issue.
References
==========
[ 1 ] CVE-2009-2414
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2414
[ 2 ] CVE-2009-2416
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2416
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201009-07.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
https://bugs.gentoo.org.
License
=======
Copyright 2010 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
