CVE-2021-23981 (GCVE-0-2021-23981)

Vulnerability from cvelistv5 – Published: 2021-03-31 13:42 – Updated: 2024-08-03 19:14
VLAI
Summary
A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
Severity
No CVSS data available.
CWE
  • Texture upload into an unbound backing buffer resulted in an out-of-bound read
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox ESR Affected: unspecified , < 78.9 (custom)
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Mozilla Firefox Affected: unspecified , < 87 (custom)
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Mozilla Thunderbird Affected: unspecified , < 78.9 (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.