curl and libcurl before 7.50.1 do not prevent TLS session resumption when the client certificate has changed, which allows remote attackers to bypass intended restrictions by resuming a session.
http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html
http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html
http://rhn.redhat.com/errata/RHSA-2016-2575.html
http://rhn.redhat.com/errata/RHSA-2016-2957.html
http://www.debian.org/security/2016/dsa-3638
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/92292
http://www.securityfocus.com/bid/92319
http://www.securitytracker.com/id/1036538
http://www.securitytracker.com/id/1038341
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059
http://www.ubuntu.com/usn/USN-3048-1
https://access.redhat.com/errata/RHSA-2018:3558
https://curl.haxx.se/docs/adv_20160803A.html
https://security.gentoo.org/glsa/201701-47
https://source.android.com/security/bulletin/2016-12-01.html
Source: MITRE
Published: 2016-08-10
Updated: 2018-11-13
Type: CWE-310
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH