CVE-2017-5472
9.8
CRITICAL
CVSS 3.1
EPSS 1.9%
Description
A use-after-free vulnerability with the frameloader during tree reconstruction while regenerating CSS layout when attempting to use a node in the tree that no longer exists. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
How to fix CVE-2017-5472
To remediate CVE-2017-5472, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 52.2.0esr-1 or later
Is CVE-2017-5472 being exploited?
Low — EPSS is 1.9%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 52.2.0esr-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |