Mozilla releases security updates for Firefox 91 and Firefox ESR 78.13

Mozilla releases security updates for Firefox 91 and Firefox ESR 78.13

Hello everyone,

Mozilla has fixed several high severity security vulnerabilities in  Firefox 91 and Firefox ESR 78.13. The details of the vulnerabilities fixed are as follows:

 Platform
 CVE ID
 Vulnerability
 Impact
 Firefox 91, Firefox ESR 78.13
 CVE-2021-29980
 Uninitialized memory in a canvas object could have led to memory corruption
 High
 Firefox 91
 CVE-2021-29981
 Live range splitting could have led to conflicting assignments in the JIT
 High 
 Firefox 91
 CVE-2021-29982
 Single bit data leak due to incorrect JIT optimization and type confusion
 Low
 Firefox 91
 CVE-2021-29983
 Firefox for Android could get stuck in fullscreen mode
 High
 Firefox 91, Firefox ESR 78.13
 CVE-2021-29984
 Incorrect instruction reordering during JIT optimization
 High
 Firefox 91, Firefox ESR 78.13
 CVE-2021-29985
 Use-after-free media channels
 Moderate
 Firefox 91, Firefox ESR 78.13
 CVE-2021-29986
 Race condition when resolving DNS names could have led to memory corruption
 High
 Firefox 91
 CVE-2021-29987
 Users could have been tricked into accepting unwanted permissions on Linux
 Moderate
 Firefox 91, Firefox ESR 78.13
 CVE-2021-29988
 Memory corruption as a result of incorrect style treatment
 High
 Firefox 91, Firefox ESR 78.13
 CVE-2021-29989
 Memory safety bugs fixed in Firefox 91 and Firefox ESR 78.13
 High
 Firefox 91
 CVE-2021-29990
 Memory safety bugs fixed in Firefox 91
 High

To patch these vulnerabilities, initiate a sync between the Central Patch Repository and the Desktop Central server. Once synced, search for the following Patch IDs or Bulletin IDs and deploy them to your target systems.

 Patch ID
 Bulletin ID
 Patch Description
 320915
 TU-027
 Mozilla Firefox (91.0)
 320916
 TU-027
 Mozilla Firefox (x64) (91.0)
 320917
 TU-054
 Mozilla Firefox ESR (78.13.0)
 320918
 TU-054
 Mozilla Firefox ESR (x64) (78.13.0)

Cheers,

The ManageEngine Team