CVE-2017-8301

MEDIUM

LibreSSL 2.5.1-2.5.3 - Improper Certificate Validation via SSL_get_verify_result

Title source: llm
STIX 2.1

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.

References (4)

Core 4
Core References
Mailing List, Third Party Advisory x_refsource_misc
http://seclists.org/oss-sec/2017/q2/145
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/libressl-portable/portable/issues/307
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://trac.nginx.org/nginx/ticket/1257
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/98076

Scores

CVSS v3 5.3
EPSS 0.0021
EPSS Percentile 43.0%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Details

CWE
CWE-295
Status published
Products (3)
openbsd/libressl 2.5.1
openbsd/libressl 2.5.2
openbsd/libressl 2.5.3
Published Apr 27, 2017
Tracked Since Feb 18, 2026