ESB-2018.3849 - [Ubuntu] pixman: Execute arbitrary code/commands - Existing account 2018-12-12

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3849
                           pixman vulnerability
                             12 December 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           pixman
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Denial of Service               -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-5297  

Reference:         ESB-2018.3637

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3843-1
   http://www.ubuntu.com/usn/usn-3843-2

Comment: This bulletin contains two (2) Ubuntu security advisories.

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==========================================================================
Ubuntu Security Notice USN-3843-1
December 11, 2018

pixman vulnerability
==========================================================================

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

- - Ubuntu 14.04 LTS

Summary:

pixman could be made to crash or run programs if it processed specially
crafted instructions.

Software Description:
- - pixman: pixel-manipulation library for X and cairo

Details:

It was discovered that pixman incorrectly handled the general_composite_rect
function. A remote attacker could use this issue to cause pixman to crash,
resulting in a denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 14.04 LTS:
  libpixman-1-0                   0.30.2-2ubuntu1.2

After a standard system update you need to restart your session to make
all the necessary changes.

References:
  https://usn.ubuntu.com/usn/usn-3843-1
  CVE-2015-5297

Package Information:
  https://launchpad.net/ubuntu/+source/pixman/0.30.2-2ubuntu1.2

- --------------------------------------------------------------------------------

==========================================================================
Ubuntu Security Notice USN-3843-2
December 11, 2018

pixman vulnerability
==========================================================================

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

- - Ubuntu 12.04 ESM

Summary:

pixman could be made to crash or run programs if it processed specially
crafted instructions.

Software Description:
- - pixman: pixel-manipulation library for X and cairo

Details:

USN-3843-1 fixed a vulnerability in pixman. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

  It was discovered that pixman incorrectly handled the
  general_composite_rect function. A remote attacker could use this
  issue to cause pixman to crash, resulting in a denial of service, or   
possibly execute arbitrary code.

Update instructions:

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

Ubuntu 12.04 ESM:
   libpixman-1-0                                      0.30.2-1ubuntu0.0.0.0.4

After a standard system update you need to restart your session to make
all the necessary changes.

References:
   https://usn.ubuntu.com/usn/usn-3843-2
   https://usn.ubuntu.com/usn/usn-3843-1
   CVE-2015-5297

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