CVE-2020-2102
MEDIUM5.3EPSS 1.5%Non-constant time HMAC comparison
Published: 5/24/2022Modified: 4/3/2025
Description
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier used a non-constant time comparison function when validating an HMAC.
Affected packages (2)
- Bitnami/jenkinsfrom 0, < 2.218.1
- Maven/org.jenkins-ci.main:jenkins-corefrom 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 |
References (9)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-2102
- PATCHhttps://github.com/jenkinsci/jenkins
- WEBhttps://access.redhat.com/errata/RHBA-2020:0402
- WEBhttps://access.redhat.com/errata/RHBA-2020:0675
- WEBhttps://access.redhat.com/errata/RHSA-2020:0681
- WEBhttps://access.redhat.com/errata/RHSA-2020:0683
- WEBhttps://github.com/jenkinsci/jenkins/commit/6f35dbb939ebe947bdb1979010b208480f1d0e31
- WEBhttps://jenkins.io/security/advisory/2020-01-29/#SECURITY-1660
- WEBhttp://www.openwall.com/lists/oss-security/2020/01/29/1