ubuntu-security-announce Digest, Vol 103, Issue 1

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Today's Topics:

1. [USN-1784-1] libxslt vulnerability (Marc Deslauriers)
2. [USN-1785-1] poppler vulnerabilities (Marc Deslauriers)
3. [USN-1787-1] Linux kernel vulnerabilities (John Johansen)


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Message: 1
Date: Tue, 02 Apr 2013 08:26:07 -0400
From: Marc Deslauriers <marc.deslauriers@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1784-1] libxslt vulnerability
Message-ID: <515ACE5F.7020203@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"

==========================================================================
Ubuntu Security Notice USN-1784-1
April 02, 2013

libxslt vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

Applications using libxslt could be made to crash if they processed a
specially crafted file.

Software Description:
- libxslt: XSLT processing library

Details:

Nicholas Gregoire discovered that libxslt incorrectly handled certain empty
values. If a user or automated system were tricked into processing a
specially crafted XSLT document, a remote attacker could cause libxslt to
crash, causing a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.10:
libxslt1.1 1.1.26-14ubuntu0.1

Ubuntu 12.04 LTS:
libxslt1.1 1.1.26-8ubuntu1.3

Ubuntu 11.10:
libxslt1.1 1.1.26-7ubuntu0.2

Ubuntu 10.04 LTS:
libxslt1.1 1.1.26-1ubuntu1.2

Ubuntu 8.04 LTS:
libxslt1.1 1.1.22-1ubuntu1.4

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1784-1
CVE-2012-6139

Package Information:
https://launchpad.net/ubuntu/+source/libxslt/1.1.26-14ubuntu0.1
https://launchpad.net/ubuntu/+source/libxslt/1.1.26-8ubuntu1.3
https://launchpad.net/ubuntu/+source/libxslt/1.1.26-7ubuntu0.2
https://launchpad.net/ubuntu/+source/libxslt/1.1.26-1ubuntu1.2
https://launchpad.net/ubuntu/+source/libxslt/1.1.22-1ubuntu1.4


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Message: 2
Date: Tue, 02 Apr 2013 08:55:25 -0400
From: Marc Deslauriers <marc.deslauriers@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1785-1] poppler vulnerabilities
Message-ID: <515AD53D.9090202@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"

==========================================================================
Ubuntu Security Notice USN-1785-1
April 02, 2013

poppler vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

Applications using poppler could be made to crash or possibly run programs
as your login if they opened a specially crafted file.

Software Description:
- poppler: PDF rendering library

Details:

It was discovered that poppler contained multiple security issues when
parsing malformed PDF documents. If a user or automated system were tricked
into opening a crafted PDF file, an attacker could cause a denial of
service or possibly execute arbitrary code with privileges of the user
invoking the program.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.10:
libpoppler-glib8 0.20.4-0ubuntu1.2
libpoppler28 0.20.4-0ubuntu1.2

Ubuntu 12.04 LTS:
libpoppler-glib8 0.18.4-1ubuntu3.1
libpoppler19 0.18.4-1ubuntu3.1

Ubuntu 11.10:
libpoppler-glib6 0.16.7-2ubuntu2.1
libpoppler13 0.16.7-2ubuntu2.1

Ubuntu 10.04 LTS:
libpoppler-glib4 0.12.4-0ubuntu5.3
libpoppler5 0.12.4-0ubuntu5.3

Ubuntu 8.04 LTS:
libpoppler-glib2 0.6.4-1ubuntu3.6
libpoppler2 0.6.4-1ubuntu3.6

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1785-1
CVE-2013-1788, CVE-2013-1789, CVE-2013-1790

Package Information:
https://launchpad.net/ubuntu/+source/poppler/0.20.4-0ubuntu1.2
https://launchpad.net/ubuntu/+source/poppler/0.18.4-1ubuntu3.1
https://launchpad.net/ubuntu/+source/poppler/0.16.7-2ubuntu2.1
https://launchpad.net/ubuntu/+source/poppler/0.12.4-0ubuntu5.3
https://launchpad.net/ubuntu/+source/poppler/0.6.4-1ubuntu3.6


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Message: 3
Date: Tue, 02 Apr 2013 12:02:18 -0700
From: John Johansen <john.johansen@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1787-1] Linux kernel vulnerabilities
Message-ID: <515B2B3A.40600@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"

==========================================================================
Ubuntu Security Notice USN-1787-1
April 02, 2013

linux vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.10

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

Emese Revfy discovered that in the Linux kernel signal handlers could leak
address information across an exec, making it possible to bypass ASLR
(Address Space Layout Randomization). A local user could use this flaw to
by pass ASLR to reliably deliver an exploit payload that would otherwise be
stopped (by ASLR). (CVE-2013-0914)

A memoery use after free error was discover in the Linux kernel's tmpfs
filesystem. A local user could exploit this flaw to gain privileges or
cause a denial of service (system crash). (CVE-2013-1767)

Mateusz Guzik discovered a race in the Linux kernel's keyring. A local user
could exploit this flaw to cause a denial of service (system crash).
(CVE-2013-1792)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.10:
linux-image-3.0.0-32-generic 3.0.0-32.51
linux-image-3.0.0-32-generic-pae 3.0.0-32.51
linux-image-3.0.0-32-omap 3.0.0-32.51
linux-image-3.0.0-32-powerpc 3.0.0-32.51
linux-image-3.0.0-32-powerpc-smp 3.0.0-32.51
linux-image-3.0.0-32-powerpc64-smp 3.0.0-32.51
linux-image-3.0.0-32-server 3.0.0-32.51
linux-image-3.0.0-32-virtual 3.0.0-32.51

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1787-1
CVE-2013-0914, CVE-2013-1767, CVE-2013-1792

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.0.0-32.51

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