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Red Hat: CVE-2021-29984: CVE-2021-29984 Mozilla: Incorrect instruction reordering during JIT optimization (Multiple Advisories)

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Red Hat: CVE-2021-29984: CVE-2021-29984 Mozilla: Incorrect instruction reordering during JIT optimization (Multiple Advisories)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
08/16/2021
Created
08/17/2021
Added
08/17/2021
Modified
12/15/2023

Description

Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly considered during garbage collection. This led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.

Solution(s)

  • redhat-upgrade-firefox
  • redhat-upgrade-firefox-debuginfo
  • redhat-upgrade-firefox-debugsource
  • redhat-upgrade-thunderbird
  • redhat-upgrade-thunderbird-debuginfo
  • redhat-upgrade-thunderbird-debugsource

References

  • CVE-2021-29984
  • RHSA-2021:3154
  • RHSA-2021:3155
  • RHSA-2021:3156
  • RHSA-2021:3157
  • RHSA-2021:3159
  • RHSA-2021:3160
  • RHSA-2021:3161
  • RHSA-2021:3162
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