CVE-2019-14439
jackson-databind: Polymorphic typing issue related to logback/JNDI
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · July 30, 2019
Updated · August 5, 2026
Description
A flaw was discovered in FasterXML jackson-databind, where it would permit polymorphic deserialization of malicious objects using the ehcache and logback JNDI gadgets when used in conjunction with polymorphic type handling methods such as enableDefaultTyping() or when @JsonTypeInfo is using Id.CLASS or Id.MINIMAL_CLASS or in any other way which ObjectMapper.readValue might instantiate objects from unsafe sources. An attacker could use this flaw to execute arbitrary code.
Statement
OpenDaylight provided as part of Red Hat OpenStack does not utilize logback when used in a supported configuration. Therefore, the prerequisites for this vulnerability are not present and OpenDaylight is not affected.
Satellite 6 does not enable polymorphic unmarshmalling, which is a required configuration for the vulnerability to be used. We may update the jackson-databind dependency in a future release.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
The following conditions are needed for an exploit, we recommend avoiding all if possible
- Deserialization from sources you do not control
enableDefaultTyping()@JsonTypeInfo usingid.CLASSorid.MINIMAL_CLASS`
CVSS / CWE
CVSS 3.0 · 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-502 · Deserialization of Untrusted Data