While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread. This would result in an incorrect text display of the certificate. This bug has been present since 2006 and is present in all versions of OpenSSL before 1.0.2m and 1.1.0g.
https://www.tenable.com/security/tns-2017-15
https://www.tenable.com/security/tns-2017-14
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.openssl.org/news/secadv/20171102.txt
https://www.openssl.org/news/secadv/20170828.txt
https://www.debian.org/security/2017/dsa-4018
https://www.debian.org/security/2017/dsa-4017
https://usn.ubuntu.com/3611-2/
https://support.apple.com/HT208331
https://security.netapp.com/advisory/ntap-20171107-0002/
https://security.netapp.com/advisory/ntap-20170927-0001/
https://security.gentoo.org/glsa/201712-03
https://security.FreeBSD.org/advisories/FreeBSD-SA-17:11.openssl.asc
https://lists.debian.org/debian-lts-announce/2017/11/msg00011.html
https://github.com/openssl/openssl/commit/068b963bb7afc57f5bdd723de0dd15e7795d5822
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
https://access.redhat.com/errata/RHSA-2018:3505
https://access.redhat.com/errata/RHSA-2018:3221
http://www.securitytracker.com/id/1039726
http://www.securityfocus.com/bid/100515
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html