vulnerability
Ubuntu: (Multiple Advisories) (CVE-2020-6821): Firefox vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | Apr 7, 2020 | Apr 8, 2020 | Aug 18, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Apr 7, 2020
Added
Apr 8, 2020
Modified
Aug 18, 2025
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.
Solutions
ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird
References
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