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CVE-2021-29984

CVSS v3.1 8.8 (High)
88% Progress
CVSS v2.0 6.8 (Medium)
68% Progress
EPSS 1.27 % (86th)
1.27% Progress
Affected Products 3
Advisories 39
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-787
Out-of-bounds Write
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2021-08-17 20:15:07
(3 years ago)
Updated Date
2022-12-09 19:10:12
(21 months ago)

Affected Products

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 91.0 version cpe:2.3:a:mozilla:firefox < 91.0
  Mozilla Firefox Esr prior 78.13.0 version cpe:2.3:a:mozilla:firefox_esr < 78.13.0
  Mozilla Thunderbird prior 78.13.0 version cpe:2.3:a:mozilla:thunderbird < 78.13.0