org.apache.http.conn.ssl.AbstractVerifier in Apache HttpComponents HttpClient before 4.3.5 and HttpAsyncClient before 4.0.2 does not properly verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a "CN=" string in a field in the distinguished name (DN) of a certificate, as demonstrated by the "foo,CN=www.apache.org" string in the O field.
https://security.netapp.com/advisory/ntap-20231027-0003/
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05363782
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05103564
https://exchange.xforce.ibmcloud.com/vulnerabilities/95327
https://access.redhat.com/solutions/1165533
http://www.ubuntu.com/usn/USN-2769-1
http://www.securitytracker.com/id/1030812
http://www.securityfocus.com/bid/69258
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
http://www.openwall.com/lists/oss-security/2021/10/06/1
http://secunia.com/advisories/60713
http://secunia.com/advisories/60589
http://secunia.com/advisories/60466
http://rhn.redhat.com/errata/RHSA-2016-1931.html
http://rhn.redhat.com/errata/RHSA-2016-1773.html
http://rhn.redhat.com/errata/RHSA-2015-1888.html
http://rhn.redhat.com/errata/RHSA-2015-1177.html
http://rhn.redhat.com/errata/RHSA-2015-1176.html
http://rhn.redhat.com/errata/RHSA-2015-0851.html
http://rhn.redhat.com/errata/RHSA-2015-0850.html
http://rhn.redhat.com/errata/RHSA-2015-0765.html
http://rhn.redhat.com/errata/RHSA-2015-0720.html
http://rhn.redhat.com/errata/RHSA-2015-0675.html
http://rhn.redhat.com/errata/RHSA-2015-0158.html
http://rhn.redhat.com/errata/RHSA-2015-0125.html
http://rhn.redhat.com/errata/RHSA-2014-1892.html
http://rhn.redhat.com/errata/RHSA-2014-1891.html
http://rhn.redhat.com/errata/RHSA-2014-1836.html
http://rhn.redhat.com/errata/RHSA-2014-1835.html
http://rhn.redhat.com/errata/RHSA-2014-1834.html
http://rhn.redhat.com/errata/RHSA-2014-1833.html
http://rhn.redhat.com/errata/RHSA-2014-1166.html
http://rhn.redhat.com/errata/RHSA-2014-1146.html
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00033.html
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00032.html