FasterXML jackson-databind before 2.7.9.3, 2.8.x before 2.8.11.1 and 2.9.x before 2.9.5 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 deserialization flaw. This is exploitable by sending maliciously crafted JSON input to the readValue method of the ObjectMapper, bypassing a blacklist that is ineffective if the c3p0 libraries are available in the classpath.
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/cpuoct2020.html
https://www.debian.org/security/2018/dsa-4190
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03902en_us
https://security.netapp.com/advisory/ntap-20180328-0001/
https://github.com/FasterXML/jackson-databind/issues/1931
https://access.redhat.com/errata/RHSA-2019:3149
https://access.redhat.com/errata/RHSA-2019:2858
https://access.redhat.com/errata/RHSA-2018:2939
https://access.redhat.com/errata/RHSA-2018:2938
https://access.redhat.com/errata/RHSA-2018:2090
https://access.redhat.com/errata/RHSA-2018:2089
https://access.redhat.com/errata/RHSA-2018:2088
https://access.redhat.com/errata/RHSA-2018:1786
https://access.redhat.com/errata/RHSA-2018:1451
https://access.redhat.com/errata/RHSA-2018:1450
https://access.redhat.com/errata/RHSA-2018:1449
https://access.redhat.com/errata/RHSA-2018:1448
https://access.redhat.com/errata/RHSA-2018:1447
http://www.securitytracker.com/id/1041890
http://www.securitytracker.com/id/1040693
http://www.securityfocus.com/bid/103203
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/cpuapr2018-3678067.html