Vulnerability Details CVE-2017-8301
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 43.4%
CVSS Severity
CVSS v3 Score 5.3
CVSS v2 Score 2.6
References
- http://seclists.org/oss-sec/2017/q2/145
- http://www.securityfocus.com/bid/98076
- https://github.com/libressl-portable/portable/issues/307
- https://trac.nginx.org/nginx/ticket/1257
- http://seclists.org/oss-sec/2017/q2/145
- http://www.securityfocus.com/bid/98076
- https://github.com/libressl-portable/portable/issues/307
- https://trac.nginx.org/nginx/ticket/1257