FasterXML jackson-databind through 2.8.11 and 2.9.x through 2.9.3 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 and CVE-2017-17485 deserialization flaws. This is exploitable via two different gadgets that bypass a blacklist.
https://access.redhat.com/errata/RHSA-2018:0478
https://access.redhat.com/errata/RHSA-2018:0479
https://access.redhat.com/errata/RHSA-2018:0480
https://access.redhat.com/errata/RHSA-2018:0481
https://access.redhat.com/errata/RHSA-2018:1525
https://access.redhat.com/errata/RHSA-2019:2858
https://access.redhat.com/errata/RHSA-2019:3149
https://github.com/FasterXML/jackson-databind/issues/1899
https://security.netapp.com/advisory/ntap-20180423-0002/
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03902en_us
Source: MITRE
Published: 2018-01-22
Updated: 2021-01-21
Type: CWE-502
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 8.1
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.2
Severity: HIGH