CVE-2020-6821
Published Apr 24, 2020
Last updated 3 years ago
Overview
- 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.
- Source
- security@mozilla.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
- nvd@nist.gov
- CWE-908
Social media
- Hype score
- Not currently trending
Configurations
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{
"nodes": [
{
"negate": false,
"cpeMatch": [
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"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "925D894A-1609-43FB-94FE-84B3EAB9CE72",
"versionEndExcluding": "75.0"
},
{
"criteria": "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D5D6475F-6C46-4BF0-B372-900A5B9FAED5",
"versionEndExcluding": "68.7.0"
},
{
"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CF7AEB5A-A52E-45E7-AFBF-546C351A4915",
"versionEndExcluding": "68.7.0"
}
],
"operator": "OR"
}
]
}
]