Vulnerability · NVD

CVE-2020-6821

CVE-2020-6821, high severity (CVSS 7.5): 2 tracked apps concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 7.5
Exploitation: 1.5 %
Tracked apps: 2
Still exposed: 0

Published on 2020-04-24

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.

Attack vector : Network No privileges required No user interaction

Show raw CVSS vector

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

EPSS 1.51% above median percentile 73.9%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Mozilla Firefox Windows winget:Mozilla.Firefox

Affected <75.0 Fixed in 75.0 Latest tracked 157.0.1 patched
Mozilla Thunderbird Windows winget:Mozilla.Thunderbird

Affected <68.7.0 Fixed in 68.7.0 Latest tracked 158.0 patched

Vulnerable CPE configurations (2)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	<75.0	cpe:2.3:a:mozilla:firefox::::::::
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	<68.7.0	cpe:2.3:a:mozilla:thunderbird::::::::

View on NVD ↗ Advisory · www.mozilla.org

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