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CVE-2021-38496 (GCVE-0-2021-38496)

Vulnerability from cvelistv5 – Published: 2021-11-03 00:03 – Updated: 2024-08-04 01:44
VLAI
Summary
During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • Use-after-free in MessageTask
Assigner
References
Impacted products
Vendor Product Version CPE status
Mozilla Thunderbird Affected: unspecified , < 78.15 (custom)
Affected: unspecified , < 91.2 (custom)
guessed Create a notification for this product.
Mozilla Firefox ESR Affected: unspecified , < 91.2 (custom)
Affected: unspecified , < 78.15 (custom)
guessed Create a notification for this product.
Mozilla Firefox Affected: unspecified , < 93 (custom)
guessed Create a notification for this product.
Show details on NVD website
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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

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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.
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  • 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.