CVE-2020-9546

NameCVE-2020-9546
DescriptionFasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.apache.hadoop.shaded.com.zaxxer.hikari.HikariConfig (aka shaded hikari-config).
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)
ReferencesDLA-2135-1
NVD severitymedium

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+deb8u15fixed
stretch (security), stretch2.8.6-1+deb9u6vulnerable
buster, buster (security)2.9.8-3+deb10u1vulnerable
bullseye, sid2.10.2-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
jackson-databindsource(unstable)(unfixed)
jackson-databindsourcejessie2.4.2-2+deb8u12DLA-2135-1

Notes

[buster] - jackson-databind <no-dsa> (Minor issue; can be fixed via a point release)
[stretch] - jackson-databind <no-dsa> (Minor issue; can be fixed via a point release)
https://github.com/FasterXML/jackson-databind/issues/2631
Starting from 2.10 series mitigated as Safe Default Typing is enabled by default
but still an issue when Default Typing is enabled.

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