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             AUSCERT External Security Bulletin Redistribution

                               ESB-2022.6245
                     USN-5718-2: pixman vulnerability
                              1 December 2022

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

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

Product:           pixman
Publisher:         Ubuntu
Operating System:  Ubuntu
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-44638  

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-5718-2

Comment: CVSS (Max):  8.8 CVE-2022-44638 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
         CVSS Source: NVD
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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USN-5718-2: pixman vulnerability
30 November 2022

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

  o Ubuntu 16.04 ESM
  o Ubuntu 14.04 ESM

Packages

  o pixman - pixel-manipulation library for X and cairo

Details

USN-5718-1 fixed a vulnerability in pixman. This update provides the
corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

Maddie Stone discovered that pixman incorrectly handled certain memory
operations. 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 16.04

  o libpixman-1-0 - 0.33.6-1ubuntu0.1~esm1
    Available with Ubuntu Pro (Infra-only)
  o libpixman-1-dev - 0.33.6-1ubuntu0.1~esm1
    Available with Ubuntu Pro (Infra-only)

Ubuntu 14.04

  o libpixman-1-0 - 0.30.2-2ubuntu1.2+esm1
    Available with Ubuntu Pro (Infra-only)
  o libpixman-1-dev - 0.30.2-2ubuntu1.2+esm1
    Available with Ubuntu Pro (Infra-only)

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

References

  o CVE-2022-44638

Related notices

  o USN-5718-1 : pixman, libpixman-1-0, libpixman-1-dev

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