CVE-2015-1793
MEDIUM 6.5EPSS 58.4%
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 v3.0 NVD
- 6.5 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - CVSS v2.0 NVD
- 6.4 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N - EPSS
- 58.45% chance of exploitation in the next 30 days, 99th percentile
- Published
- 2015-07-09
- Updated
- 2024-08-06
Metasploit modules (1)
ExploitDB entries (1)
Security advisories
- http://openssl.org/news/secadv_20150709.txt
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.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.securityfocus.com/bid/75652
- http://www.securityfocus.com/bid/91787
- 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://kc.mcafee.com/corporate/index?page=content&id=SB10125