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             AUSCERT External Security Bulletin Redistribution

                               ESB-2022.2519
                  USN-5436-1: libXrender vulnerabilities
                                24 May 2022

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

Product:           libXrender
Publisher:         Ubuntu
Operating System:  Ubuntu
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-7950 CVE-2016-7949 

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-5436-1

Comment: CVSS (Max):  9.8 CVE-2016-7950 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
         CVSS Source: NVD
         Calculator:  https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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USN-5436-1: libXrender vulnerabilities
23 May 2022

Several security issues were fixed in libXrender.
Releases

  o Ubuntu 16.04 ESM

Packages

  o libxrender - X11 Rendering Extension client library

Details

Tobias Stoeckmann discovered that libXrender incorrectly handled certain
responses. An attacker could possibly use this issue to cause a denial
of service, or possibly execute arbitrary code.
( CVE-2016-7949 , CVE-2016-7950 )

Update instructions

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

Ubuntu 16.04

  o libxrender1 - 1:0.9.9-0ubuntu1+esm1
    Available with UA Infra or UA Desktop

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

References

  o CVE-2016-7950
  o CVE-2016-7949

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