CVE-2021-25642
Deserialization of Untrusted Data in Apache Hadoop YARN
8.8
HIGH
CVSS 3.1
EPSS 2.7%
Description
ZKConfigurationStore which is optionally used by CapacityScheduler of Apache Hadoop YARN deserializes data obtained from ZooKeeper without validation. An attacker having access to ZooKeeper can run arbitrary commands as YARN user by exploiting this. Users should upgrade to Apache Hadoop 2.10.2, 3.2.4, 3.3.4 or later (containing YARN-11126) if ZKConfigurationStore is used.
How to fix CVE-2021-25642
To remediate CVE-2021-25642, upgrade the affected package to a fixed version below.
- —upgrade to 2.10.2 or later
Is CVE-2021-25642 being exploited?
Low — EPSS is 2.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.10.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |