CVE-2020-6821

Source
https://cve.org/CVERecord?id=CVE-2020-6821
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-6821.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-6821
Downstream
Related
Published
2020-04-24T16:15:13Z
Modified
2026-04-16T00:01:53Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

When reading from areas partially or fully outside the source resource with WebGL's copyTexSubImage 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.

References

Affected packages

Git /

Affected ranges

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-6821.json"
unresolved_ranges
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "75.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "68.7.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "68.7.0"
            }
        ]
    }
]