CVE-2015-1793
CVE-2015-1793
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
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.
CVSS 6.5 · Medium · EPSS 58.2% · Public exploit · Fix available
- Published
- Updated
Affected products and versions
Original sources
- http://marc.info/?l=bugtraq&m=143880121627664&w=2
- https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04822825
- http://www.securitytracker.com/id/1032817
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- https://security.gentoo.org/glsa/201507-15
- http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-454058.htm
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150710-openssl
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=9a0db453ba017ebcaccbee933ee6511a9ae4d1c8
- https://www.freebsd.org/security/advisories/FreeBSD-SA-15:12.openssl.asc
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05184351
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161747.html
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- http://openssl.org/news/secadv_20150709.txt
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes
- http://marc.info/?l=bugtraq&m=144370846326989&w=2
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161782.html
- http://fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery
- https://kc.mcafee.com/corporate/index?page=content&id=SB10125
- http://www.fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery
- https://nvd.nist.gov/vuln/detail/CVE-2015-1793