CVE-2015-1793
openssl: alternative chains certificate forgery
Severity
ImportantRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · July 9, 2015
Updated · August 5, 2026
Description
A flaw was found in the way OpenSSL verified alternative certificate chains. An attacker able to supply a certificate chain to an SSL/TLS or DTLS client or an SSL/TLS or DTLS server using client authentication could use this flaw to bypass certain checks in the verification process, possibly allowing them to use one of the certificates in the supplied certificate chain as a CA certificate to generate an invalid certificate.
Statement
Not vulnerable. This issue does not affect any version of the OpenSSL package as shipped with Red Hat Enterprise Linux 4, 5, 6 and 7, JBoss Enterprise Application Platform 6, Red Hat JBoss Enterprise Web Server 1 and 2, and Red Hat JBoss Web Server 3 because they did not include support for alternative certificate chains.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 5.8AV:N/AC:M/Au:N/C:P/I:P/A:N
CWE not specified