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TI-2017-05867 Aliases CVE-2017-8301GHSA-phvv-c9gw-v54h

LibreSSL 2.5.1 to 2.5.3 lacks TLS certificate verification if SSL_get_verify_result is…

Priority LOW 26CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Spoofing
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-295.

Summary

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.

Why it matters now

EPSS 0.01041 64th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:openbsd:libressl:2.5.1:*:*:*:*:*:*:*2.5.1VulnerableOpenBSD
cpe:2.3:a:openbsd:libressl:2.5.2:*:*:*:*:*:*:*2.5.2VulnerableOpenBSD
cpe:2.3:a:openbsd:libressl:2.5.3:*:*:*:*:*:*:*2.5.3VulnerableOpenBSD
  • cpe:2.3:a:openbsd:libressl:2.5.1:*:*:*:*:*:*:* Versions 2.5.1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:libressl:2.5.2:*:*:*:*:*:*:* Versions 2.5.2 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:libressl:2.5.3:*:*:*:*:*:*:* Versions 2.5.3 Vulnerable ·OpenBSD

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-8301
  2. 2026-10-03 Alias added: GHSA-phvv-c9gw-v54h

References

Patch 2

Advisory 1

  • TI-2023-17874 A double free or use after free could occur after SSL_clear in OpenBSD 7.2 before errata… CVSS 3.1CRITICAL 9.8
  • TI-2021-21548 x509/x509_verify.c in LibreSSL before 3.4.2, and OpenBSD before 7.0 errata 006, allows… CVSS 3.1CRITICAL 9.8
  • TI-2015-04488 Out-of-bounds write in LibreSSL CVSS 3.1CRITICAL 9.8
  • TI-2015-04487 Uncontrolled resource consumption in LibreSSL CVSS 3.1HIGH 7.5
  • TI-2014-07651 Double free vulnerability in the ssl_parse_clienthello_use_srtp_ext function in d1_srtp.c… CVSS 2.0HIGH 7.5
  • TI-2018-06502 The int_x509_param_set_hosts function in lib/libcrypto/x509/x509_vpm.c in LibreSSL 2.7.0… CVSS 3.0HIGH 7.4
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences