CVE-2019-12086
jackson-databind - security update
Description
A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint, the service has the mysql-connector-java jar (8.0.14 or earlier) in the classpath, and an attacker can host a crafted MySQL server reachable by the victim, an attacker can send a crafted JSON message that allows them to read arbitrary local files on the server. This occurs because of missing com.mysql.cj.jdbc.admin.MiniAdmin validation.
How to fix CVE-2019-12086
To remediate CVE-2019-12086, upgrade the affected package to a fixed version below.
- —upgrade to 2.9.8-2 or later
- —upgrade to 2.4.2-2+deb8u6 or later
- —upgrade to 2.9.9 or later
Is CVE-2019-12086 being exploited?
Moderate — EPSS is 15.5%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (3)
- from 0, < 2.9.8-2
- from 0, < 2.4.2-2+deb8u6
- >= 2.9.0, < 2.9.9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |