CVE-2020-6822
8.8
HIGH
CVSS 3.1
EPSS 0.81%
Description
On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in <code>GMPDecodeData</code>. It is possible that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.
How to fix CVE-2020-6822
To remediate CVE-2020-6822, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 68.7.0esr-1 or later
- —upgrade to 1:68.7.0-1 or later
Is CVE-2020-6822 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 68.7.0esr-1
- from 0, < 1:68.7.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |