DescriptionA Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the apache-log4j-extra (version 1.2.x) jar in the classpath, and an attacker can provide a JNDI service to access, it is possible to make the service execute a malicious payload.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
jackson-databind (PTS)jessie2.4.2-2+deb8u4vulnerable
jessie (security)2.4.2-2+deb8u13fixed
stretch (security), stretch2.8.6-1+deb9u6vulnerable
buster, buster (security)2.9.8-3+deb10u1vulnerable
bullseye, sid2.10.2-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs

Starting from 2.10 series mitigated as Safe Default Typing is enabled by default
but still an issue when Default Typing is enabled.

Search for package or bug name: Reporting problems