CVE-2017-8301Improper Certificate Validation in Libressl

Severity
5.3MEDIUMNVD
EPSS
0.2%
top 56.85%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedApr 27
Latest updateMay 13

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.

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:NExploitability: 1.6 | Impact: 3.6

Affected Packages2 packages

Alpineopenbsd/libressl< 2.5.3-r1+7
NVDopenbsd/libressl2.5.1, 2.5.2, 2.5.3+2

Patches

🔴Vulnerability Details

2
GHSA
GHSA-phvv-c9gw-v54h: LibreSSL 22022-05-13
OSV
CVE-2017-8301: LibreSSL 22017-04-27