CVE-2020-6821

State: Published
Severity: Not scored
Published: Apr 24, 2020
Updated: Aug 4, 2024
Reserved: Jan 10, 2020

Description

When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
ThunderbirdMozilla	before 68.7.0Affected
Firefox ESRMozilla	before 68.7Affected
FirefoxMozilla	before 75Affected

References

https://www.mozilla.org/security/advisories/mfsa2020-13/
https://www.mozilla.org/security/advisories/mfsa2020-12/
https://www.mozilla.org/security/advisories/mfsa2020-14/
https://bugzilla.mozilla.org/show_bug.cgi?id=1625404
USN-4335-1vendor-advisory

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