CVE-2015-1793

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Summary

CVECVE-2015-1793
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2015-07-09 19:17:00 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate.

Risk And Classification

Primary CVSS: v3.0 6.5 MEDIUM from [email protected]

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

Problem Types: CWE-254 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary6.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
2.0[email protected]Primary6.4AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS v3.0 Breakdown

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

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

CVSS v2.0 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openssl Openssl 1.0.1n All All All
Application Openssl Openssl 1.0.1o All All All
Application Openssl Openssl 1.0.2b All All All
Application Openssl Openssl 1.0.2c All All All
Application Oracle Jd Edwards Enterpriseone Tools 9.1 All All All
Application Oracle Jd Edwards Enterpriseone Tools 9.2 All All All
Operating System Oracle Opus 10g Ethernet Switch Family All All All All
Application Oracle Supply Chain Products Suite 6.1.2.2 All All All
Application Oracle Supply Chain Products Suite 6.1.3.0 All All All
Application Oracle Supply Chain Products Suite 6.2.0 All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
OpenSSL CVE-2015-1793 Certificate Verification Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Document Display | HPE Support Center af854a3a-2127-422b-91ae-364da2661108 h20566.www2.hpe.com
StruxureWare Data Center Operation Software Vulnerability Fixes - User Assistance for StruxureWare Data Center Operation 8 - Help Center: Support for EcoStruxure IT, StruxureWare for Data Centers, and NetBotz af854a3a-2127-422b-91ae-364da2661108 help.ecostruxureit.com
'[security bulletin] HPSBUX03388 SSRT102180 rev.1 - HP-UX running OpenSSL, Remote Disclosure of Infor' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
OpenSSL Alternative Chains Certificate Forgery Vulnerability (July 2015) Affecting Cisco Products af854a3a-2127-422b-91ae-364da2661108 tools.cisco.com
OpenSSL - Alternative Chains Certificate Forgery - Multiple webapps Exploit af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com
Document Display | HPE Support Center af854a3a-2127-422b-91ae-364da2661108 h20566.www2.hpe.com
FortiGuard af854a3a-2127-422b-91ae-364da2661108 fortiguard.com
Security Advisory - MITM Vulnerability in the OpenSSL Module of Huawei eSight Network af854a3a-2127-422b-91ae-364da2661108 www1.huawei.com
Document Display | HPE Support Center af854a3a-2127-422b-91ae-364da2661108 h20564.www2.hpe.com
Oracle Critical Patch Update - October 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com
OpenSSL Alternative Certificate Chain Validation Flaw Lets Remote Users Forge Certificates - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
www.freebsd.org/security/advisories/FreeBSD-SA-15:12.openssl.asc af854a3a-2127-422b-91ae-364da2661108 www.freebsd.org
Oracle Critical Patch Update - October 2015 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch
Gentoo Security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
[SECURITY] Fedora 22 Update: openssl-1.0.1k-11.fc22 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Oracle Critical Patch Update - July 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com
FortiGuard af854a3a-2127-422b-91ae-364da2661108 www.fortiguard.com
'[security bulletin] HPSBGN03424 rev.1 - HP Cloud Service Automation, Remote Authentication Bypass' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
Juniper Networks - 2015-10 Security Bulletin: Junos: OpenSSL June-July 2015 advisories - Knowledge Base af854a3a-2127-422b-91ae-364da2661108 kb.juniper.net
ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc af854a3a-2127-422b-91ae-364da2661108 ftp.netbsd.org
Oracle Critical Patch Update - October 2017 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com
Oracle Critical Patch Update - January 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch
Oracle Solaris Third Party Bulletin - July 2015 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com
Oracle Critical Patch Update Advisory - April 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch
McAfee KnowledgeBase - Intel Security - Security Bulletin: OpenSSL CVE-2015-1793 vulnerability af854a3a-2127-422b-91ae-364da2661108 kc.mcafee.com
git.openssl.org Git - openssl.git/commit af854a3a-2127-422b-91ae-364da2661108 git.openssl.org
[SECURITY] Fedora 21 Update: openssl-1.0.1k-11.fc21 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Oracle July 2016 Critical Patch Update Multiple Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
The Slackware Linux Project: Slackware Security Advisories af854a3a-2127-422b-91ae-364da2661108 www.slackware.com
openssl.org/news/secadv_20150709.txt af854a3a-2127-422b-91ae-364da2661108 openssl.org Vendor Advisory
git.openssl.org Git - openssl.git/commit MITRE git.openssl.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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