1. Home
  2. Vulnerabilities
  3. CVE-2020-6821

CVE-2020-6821

CVSS v3.1 7.5 (High)
75% Progress
CVSS v2.0 5 (Medium)
50% Progress
EPSS 0.21 % (59th)
0.21% Progress
Affected Products 3
Advisories 32
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-908
Use of Uninitialized Resource
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2020-04-24 16:15:13
(4 years ago)
Updated Date
2021-07-21 11:39:23
(3 years ago)

Affected Products

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 75.0 version cpe:2.3:a:mozilla:firefox < 75.0
  Mozilla Firefox Esr prior 68.7.0 version cpe:2.3:a:mozilla:firefox_esr < 68.7.0
  Mozilla Thunderbird prior 68.7.0 version cpe:2.3:a:mozilla:thunderbird < 68.7.0