CVE-2017-8301

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Summary

CVECVE-2017-8301
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-04-27 17:59:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionLibreSSL 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.

Risk And Classification

Primary CVSS: v3.0 5.3 MEDIUM from [email protected]

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Problem Types: CWE-295 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary5.3MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
2.0[email protected]Primary2.6AV:N/AC:H/Au:N/C:N/I:P/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
High
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None

AV:N/AC:H/Au:N/C:N/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openbsd Libressl 2.5.1 All All All
Application Openbsd Libressl 2.5.2 All All All
Application Openbsd Libressl 2.5.3 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
LibreSSL CVE-2017-8301 Certificate Validation Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
#1257 (Some nginx TLS tests started failing with LibreSSL 2.5.3) – nginx af854a3a-2127-422b-91ae-364da2661108 trac.nginx.org Issue Tracking, Patch, Third Party Advisory
oss-sec: CVE-2017-8301: TLS verification vulnerability in LibreSSL 2.5.1 - 2.5.3 af854a3a-2127-422b-91ae-364da2661108 seclists.org Mailing List, Third Party Advisory
Some nginx TLS tests started failing with LibreSSL 2.5.3 (but not with 2.4.4) · Issue #307 · libressl-portable/portable · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Issue Tracking, Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 500367 Alpine Linux Security Update for libressl
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