CVE-2020-12417
thunderbird - security update
8.8
HIGH
CVSS 3.1
EPSS 0.42%
Description
Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in memory corruption and a potentially exploitable crash. *Note: this issue only affects Firefox on ARM64 platforms.* This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
How to fix CVE-2020-12417
To remediate CVE-2020-12417, upgrade the affected package to a fixed version below.
- —upgrade to 68.10.0esr-1 or later
- —upgrade to 68.10.0esr-1~deb9u1 or later
- —upgrade to 1:68.10.0-1 or later
- —upgrade to 1:68.10.0-1~deb9u1 or later
Is CVE-2020-12417 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 68.10.0esr-1
- from 0, < 68.10.0esr-1~deb9u1
- from 0, < 1:68.10.0-1
- from 0, < 1:68.10.0-1~deb9u1
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 |