Description
The 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.
Published: 2015-07-09
Score: 6.5 Medium
EPSS: 76.3% High
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

References
Link Providers
http://fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery cve-icon cve-icon
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc cve-icon cve-icon
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694 cve-icon cve-icon
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161747.html cve-icon cve-icon
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161782.html cve-icon cve-icon
http://marc.info/?l=bugtraq&m=143880121627664&w=2 cve-icon cve-icon
http://marc.info/?l=bugtraq&m=144370846326989&w=2 cve-icon cve-icon
http://openssl.org/news/secadv_20150709.txt cve-icon cve-icon cve-icon
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150710-openssl cve-icon cve-icon
http://www.fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html cve-icon cve-icon
http://www.securityfocus.com/bid/75652 cve-icon cve-icon
http://www.securityfocus.com/bid/91787 cve-icon cve-icon
http://www.securitytracker.com/id/1032817 cve-icon cve-icon
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.561427 cve-icon cve-icon
http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-454058.htm cve-icon cve-icon
https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=9a0db453ba017ebcaccbee933ee6511a9ae4d1c8 cve-icon cve-icon
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04822825 cve-icon cve-icon
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05045763 cve-icon cve-icon
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05184351 cve-icon cve-icon
https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes cve-icon cve-icon
https://kc.mcafee.com/corporate/index?page=content&id=SB10125 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2015-1793 cve-icon
https://security.gentoo.org/glsa/201507-15 cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2015-1793 cve-icon
https://www.exploit-db.com/exploits/38640/ cve-icon cve-icon
https://www.freebsd.org/security/advisories/FreeBSD-SA-15:12.openssl.asc cve-icon cve-icon
History

No history.

Subscriptions

Openssl Openssl
Oracle Jd Edwards Enterpriseone Tools Opus 10g Ethernet Switch Family Supply Chain Products Suite
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T04:54:16.256Z

Reserved: 2015-02-17T00:00:00.000Z

Link: CVE-2015-1793

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2015-07-09T19:17:00.093

Modified: 2026-05-06T22:30:45.220

Link: CVE-2015-1793

cve-icon Redhat

Severity : Important

Publid Date: 2015-07-09T00:00:00Z

Links: CVE-2015-1793 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses