| Name | CVE-2019-17531 |
| Description | A 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2030-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| jackson-databind (PTS) | jessie, jessie (lts) | 2.4.2-2+deb8u17 | fixed |
| stretch (security) | 2.8.6-1+deb9u10 | fixed |
| stretch (lts), stretch | 2.8.6-1+deb9u11 | fixed |
| buster (security), buster, buster (lts) | 2.9.8-3+deb10u5 | fixed |
| bullseye (security), bullseye | 2.12.1-1+deb11u1 | fixed |
| sid, trixie, bookworm | 2.14.0-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://github.com/FasterXML/jackson-databind/issues/2498
https://github.com/FasterXML/jackson-databind/commit/b5a304a98590b6bb766134f9261e6566dcbbb6d0
Starting from 2.10 series mitigated as Safe Default Typing is enabled by default
but still an issue when Default Typing is enabled.