CVE-2020-12387 (GCVE-0-2020-12387)

Vulnerability from cvelistv5 – Published: 2020-05-26 17:04 – Updated: 2024-08-04 11:56
VLAI
Summary
A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • Use-after-free during worker shutdown
Assigner
References
Impacted products
Vendor Product Version CPE status
Mozilla Firefox ESR Affected: unspecified , < 68.8 (custom)
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Mozilla Firefox Affected: unspecified , < 76 (custom)
guessed Create a notification for this product.
Mozilla Thunderbird Affected: unspecified , < 68.8.0 (custom)
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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.
  • 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.


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