CVE-2020-6821

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/24/2020

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

mozilla:firefoxmozilla:firefox_esrmozilla:thunderbird

Weaknesses (CWE)

CWE-908

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1625404(security@mozilla.org)

https://usn.ubuntu.com/4335-1/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2020-12/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2020-13/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2020-14/(security@mozilla.org)

https://bugzilla.mozilla.org/show_bug.cgi?id=1625404(af854a3a-2127-422b-91ae-364da2661108)

https://usn.ubuntu.com/4335-1/(af854a3a-2127-422b-91ae-364da2661108)

https://www.mozilla.org/security/advisories/mfsa2020-12/(af854a3a-2127-422b-91ae-364da2661108)

https://www.mozilla.org/security/advisories/mfsa2020-13/(af854a3a-2127-422b-91ae-364da2661108)

https://www.mozilla.org/security/advisories/mfsa2020-14/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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