CVE-2018-20997
Use after free in CMS Signing
9.8
CRITICAL
CVSS 3.1
EPSS 0.50%
Description
Affected versions of the OpenSSL crate used structures after they'd been freed.
How to fix CVE-2018-20997
To remediate CVE-2018-20997, upgrade the affected package to a fixed version below.
- crates.io/openssl—upgrade to 0.10.9 or later
- crates.io/openssl—upgrade to 0.10.9 or later
Is CVE-2018-20997 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 0.10.8, < 0.10.9
- >= 0.10.8, < 0.10.9
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 |