CVE-2020-2102
Non-constant time HMAC comparison
5.3
MEDIUM
CVSS 3.1
EPSS 1.4%
Description
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier used a non-constant time comparison function when validating an HMAC.
How to fix CVE-2020-2102
To remediate CVE-2020-2102, upgrade the affected package to a fixed version below.
- Bitnami/jenkins—upgrade to 2.218.1 or later
- Maven/org.jenkins-ci.main:jenkins-core—upgrade to 2.204.2 or later
Is CVE-2020-2102 being exploited?
Low — EPSS is 1.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.218.1
- from 0, < 2.204.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |