CVE-2017-8301
5.3
MEDIUM
CVSS 3.1
EPSS 0.43%
Description
LibreSSL 2.5.1 to 2.5.3 lacks TLS certificate verification if SSL_get_verify_result is relied upon for a later check of a verification result, in a use case where a user-provided verification callback returns 1, as demonstrated by acceptance of invalid certificates by nginx.
How to fix CVE-2017-8301
To remediate CVE-2017-8301, upgrade the affected package to a fixed version below.
- Alpine/libressl—upgrade to 2.5.3-r1 or later
Is CVE-2017-8301 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.5.3-r1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N |