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Today's Topics:
1. [USN-1417-1] libpng vulnerability (Marc Deslauriers)
2. [USN-1418-1] GnuTLS vulnerabilities (Tyler Hicks)
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Message: 1
Date: Thu, 05 Apr 2012 14:32:56 -0400
From: Marc Deslauriers <marc.deslauriers@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1417-1] libpng vulnerability
Message-ID: <1333650776.22169.136.camel@mdlinux>
Content-Type: text/plain; charset="utf-8"
==========================================================================
Ubuntu Security Notice USN-1417-1
April 05, 2012
libpng vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
Summary:
libpng could be made to crash or run programs as your login if it opened a
specially crafted file.
Software Description:
- libpng: PNG (Portable Network Graphics) file library
Details:
It was discovered that libpng incorrectly handled certain memory
operations. If a user or automated system using libpng were tricked into
opening a specially crafted image, an attacker could exploit this to cause
a denial of service or execute code with the privileges of the user
invoking the program.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 11.10:
libpng12-0 1.2.46-3ubuntu1.3
Ubuntu 11.04:
libpng12-0 1.2.44-1ubuntu3.4
Ubuntu 10.10:
libpng12-0 1.2.44-1ubuntu0.4
Ubuntu 10.04 LTS:
libpng12-0 1.2.42-1ubuntu2.5
Ubuntu 8.04 LTS:
libpng12-0 1.2.15~beta5-3ubuntu0.7
After a standard system update you need to restart your session to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1417-1
CVE-2011-3048
Package Information:
https://launchpad.net/ubuntu/+source/libpng/1.2.46-3ubuntu1.3
https://launchpad.net/ubuntu/+source/libpng/1.2.44-1ubuntu3.4
https://launchpad.net/ubuntu/+source/libpng/1.2.44-1ubuntu0.4
https://launchpad.net/ubuntu/+source/libpng/1.2.42-1ubuntu2.5
https://launchpad.net/ubuntu/+source/libpng/1.2.15~beta5-3ubuntu0.7
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Message: 2
Date: Thu, 5 Apr 2012 17:37:57 -0500
From: Tyler Hicks <tyhicks@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1418-1] GnuTLS vulnerabilities
Message-ID: <20120405223756.GA26960@boyd>
Content-Type: text/plain; charset="us-ascii"
==========================================================================
Ubuntu Security Notice USN-1418-1
April 05, 2012
gnutls13, gnutls26 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
Summary:
The GnuTLS library could be made to crash under certain conditions.
Software Description:
- gnutls26: the GNU TLS library - commandline utilities
- gnutls13: the GNU TLS library - commandline utilities
Details:
Alban Crequy discovered that the GnuTLS library incorrectly checked array
bounds when copying TLS session data. A remote attacker could crash a client
application, leading to a denial of service, as the client application prepared
for TLS session resumption. (CVE-2011-4128)
Matthew Hall discovered that the GnuTLS library incorrectly handled TLS
records. A remote attacker could crash client and server applications, leading
to a denial of service, by sending a crafted TLS record. (CVE-2012-1573)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 11.10:
libgnutls26 2.10.5-1ubuntu3.1
Ubuntu 11.04:
libgnutls26 2.8.6-1ubuntu2.1
Ubuntu 10.10:
libgnutls26 2.8.6-1ubuntu0.1
Ubuntu 10.04 LTS:
libgnutls26 2.8.5-2ubuntu0.1
Ubuntu 8.04 LTS:
libgnutls13 2.0.4-1ubuntu2.7
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1418-1
CVE-2011-4128, CVE-2012-1573
Package Information:
https://launchpad.net/ubuntu/+source/gnutls26/2.10.5-1ubuntu3.1
https://launchpad.net/ubuntu/+source/gnutls26/2.8.6-1ubuntu2.1
https://launchpad.net/ubuntu/+source/gnutls26/2.8.6-1ubuntu0.1
https://launchpad.net/ubuntu/+source/gnutls26/2.8.5-2ubuntu0.1
https://launchpad.net/ubuntu/+source/gnutls13/2.0.4-1ubuntu2.7
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