CVE-2015-1793
First published: Thu Jul 09 2015(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Oracle Supply Chain Products Suite | =6.1.2.2 | |
| Oracle Supply Chain Products Suite | =6.1.3.0 | |
| Oracle Supply Chain Products Suite | =6.2.0 | |
| Oracle JD Edwards EnterpriseOne Tools | =9.1 | |
| Oracle JD Edwards EnterpriseOne Tools | =9.2 | |
| OpenSSL libcrypto | =1.0.1n | |
| OpenSSL libcrypto | =1.0.1o | |
| OpenSSL libcrypto | =1.0.2b | |
| OpenSSL libcrypto | =1.0.2c | |
| Oracle OPUS 10g Ethernet Switch Family | <=2.0.0.6 |
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Reference Links
- http://fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery
- http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161747.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161782.html
- http://marc.info/?l=bugtraq&m=143880121627664&w=2
- http://marc.info/?l=bugtraq&m=144370846326989&w=2
- http://openssl.org/news/secadv_20150709.txt
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150710-openssl
- http://www.fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
- http://www.securityfocus.com/bid/75652
- http://www.securityfocus.com/bid/91787
- http://www.securitytracker.com/id/1032817
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.561427
- http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-454058.htm
- https://git.openssl.org/?p=openssl.git;a=commit;h=9a0db453ba017ebcaccbee933ee6511a9ae4d1c8
- https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04822825
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05045763
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05184351
- https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes
- https://kc.mcafee.com/corporate/index?page=content&id=SB10125
- https://security.gentoo.org/glsa/201507-15
- https://www.exploit-db.com/exploits/38640/
- https://www.freebsd.org/security/advisories/FreeBSD-SA-15:12.openssl.asc
Frequently Asked Questions
What is the severity of CVE-2015-1793?
CVE-2015-1793 is classified as a medium severity vulnerability.
How do I fix CVE-2015-1793?
To fix CVE-2015-1793, update your OpenSSL version to 1.0.2d or later.
What systems are affected by CVE-2015-1793?
CVE-2015-1793 affects specific versions of OpenSSL and Oracle Supply Chain Products Suite.
Can CVE-2015-1793 lead to a Certification Authority spoofing?
Yes, CVE-2015-1793 allows remote attackers to spoof a Certification Authority role.
Is CVE-2015-1793 exploitable remotely?
Yes, CVE-2015-1793 can be exploited remotely by attackers.
- agent/severity
- agent/references
- agent/weakness
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- agent/event
- agent/first-publish-date
- agent/softwarecombine
- agent/remedy
- agent/last-modified-date
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/oracle
- canonical/oracle supply chain products suite
- version/oracle supply chain products suite/6.1.2.2
- version/oracle supply chain products suite/6.1.3.0
- version/oracle supply chain products suite/6.2.0
- canonical/oracle jd edwards enterpriseone tools
- version/oracle jd edwards enterpriseone tools/9.1
- version/oracle jd edwards enterpriseone tools/9.2
- vendor/openssl
- canonical/openssl libcrypto
- version/openssl libcrypto/1.0.1n
- version/openssl libcrypto/1.0.1o
- version/openssl libcrypto/1.0.2b
- version/openssl libcrypto/1.0.2c
- canonical/oracle opus 10g ethernet switch family
- version/oracle opus 10g ethernet switch family/2.0.0.6