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             AUSCERT External Security Bulletin Redistribution

                    Security update for MozillaFirefox
                              13 August 2021


        AusCERT Security Bulletin Summary

Product:           MozillaFirefox
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
                   Access Confidential Data        -- Remote with User Interaction
                   Reduced Security                -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-29989 CVE-2021-29988 CVE-2021-29986
                   CVE-2021-29985 CVE-2021-29984 CVE-2021-29980

Reference:         ESB-2021.2734

Original Bulletin: 

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SUSE Security Update: Security update for MozillaFirefox


Announcement ID:   SUSE-SU-2021:14782-1
Rating:            important
References:        #1188891
Cross-References:  CVE-2021-29980 CVE-2021-29984 CVE-2021-29985 CVE-2021-29986
                   CVE-2021-29988 CVE-2021-29989
Affected Products:
                   SUSE Linux Enterprise Server 11-SP4-LTSS
                   SUSE Linux Enterprise Debuginfo 11-SP4

An update that fixes 6 vulnerabilities is now available.


This update for MozillaFirefox fixes the following issues:
Firefox Extended Support Release 78.13.0 ESR (MFSA 2021-34, bsc#1188891):

  o CVE-2021-29986: Race condition when resolving DNS names could have led to
    memory corruption
  o CVE-2021-29988: Memory corruption as a result of incorrect style treatment
  o CVE-2021-29984: Incorrect instruction reordering during JIT optimization
  o CVE-2021-29980: Uninitialized memory in a canvas object could have led to
    memory corruption
  o CVE-2021-29985: Use-after-free media channels
  o CVE-2021-29989: Memory safety bugs fixed in Firefox 91 and Firefox ESR

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  o SUSE Linux Enterprise Server 11-SP4-LTSS:
    zypper in -t patch slessp4-MozillaFirefox-14782=1
  o SUSE Linux Enterprise Debuginfo 11-SP4:
    zypper in -t patch dbgsp4-MozillaFirefox-14782=1

Package List:

  o SUSE Linux Enterprise Server 11-SP4-LTSS (x86_64):
  o SUSE Linux Enterprise Debuginfo 11-SP4 (x86_64):


  o https://www.suse.com/security/cve/CVE-2021-29980.html
  o https://www.suse.com/security/cve/CVE-2021-29984.html
  o https://www.suse.com/security/cve/CVE-2021-29985.html
  o https://www.suse.com/security/cve/CVE-2021-29986.html
  o https://www.suse.com/security/cve/CVE-2021-29988.html
  o https://www.suse.com/security/cve/CVE-2021-29989.html
  o https://bugzilla.suse.com/1188891

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