CVE-2017-20189
Clojure classes can be used to craft a serialized object that runs arbitrary code on deserialization
9.8
CRITICAL
CVSS 3.1
EPSS 3.4%
Description
In Clojure before 1.9.0, classes can be used to construct a serialized object that executes arbitrary code upon deserialization. This is relevant if a server deserializes untrusted objects.
How to fix CVE-2017-20189
To remediate CVE-2017-20189, upgrade the affected package to a fixed version below.
- Debian/clojure—upgrade to 1.9.0-1 or later
- —upgrade to 1.9.0 or later
Is CVE-2017-20189 being exploited?
Low — EPSS is 3.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.9.0-1
- from 0, < 1.9.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |