CVE-2019-14893

NameCVE-2019-14893
DescriptionA flaw was discovered in FasterXML jackson-databind in all versions before 2.9.10 and 2.10.0, where it would permit polymorphic deserialization of malicious objects using the xalan JNDI gadget 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.
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)stretch2.8.6-1+deb9u7fixed
stretch (security)2.8.6-1+deb9u6fixed
buster2.9.8-3+deb10u2fixed
buster (security)2.9.8-3+deb10u1fixed
bullseye, sid2.11.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
jackson-databindsourcejessie2.4.2-2+deb8u9
jackson-databindsourcestretch2.8.6-1+deb9u6
jackson-databindsourcebuster2.9.8-3+deb10u1
jackson-databindsource(unstable)2.10.0-1

Notes

https://github.com/FasterXML/jackson-databind/issues/2469
https://github.com/FasterXML/jackson-databind/commit/998efd708284778f29d83d7962a9bd935c228317

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