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CVE-2021-29984 (GCVE-0-2021-29984)

Vulnerability from cvelistv5 – Published: 2021-08-17 19:12 – Updated: 2024-08-03 22:24
VLAI
Summary
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.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • Incorrect instruction reordering during JIT optimization
Assigner
References
Impacted products
Vendor Product Version CPE status
Mozilla Thunderbird Affected: unspecified , < 78.13 (custom)
Affected: unspecified , < 91 (custom)
guessed Create a notification for this product.
Mozilla Firefox ESR Affected: unspecified , < 78.13 (custom)
guessed Create a notification for this product.
Mozilla Firefox Affected: unspecified , < 91 (custom)
guessed Create a notification for this product.
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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.