Vulnerability · Published Jan 13, 2021 · Assigned by jenkins
CVE-2021-21604
High 8.0
In plain English
A high-severity security flaw in Jenkins from Jenkins project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.0High
Exploit odds (30 days)1.7%top 22.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows attackers with permission to create or configure various objects to inject crafted content into Old Data Monitor that results in the instantiation of potentially unsafe objects once discarded by an administrator.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | jenkins | 2.275-r0 | ALPINE-CVE-2021-21604 |
| Alpine:v3.21 | jenkins | 2.275-r0 | ALPINE-CVE-2021-21604 |
| Alpine:v3.22 | jenkins | 2.275-r0 | ALPINE-CVE-2021-21604 |
| Alpine:v3.23 | jenkins | 2.275-r0 | ALPINE-CVE-2021-21604 |
| Alpine:v3.24 | jenkins | 2.275-r0 | ALPINE-CVE-2021-21604 |
| Maven | org.jenkins-ci.main:jenkins-core | 2.263.2 | GHSA-qv6f-rcv6-6q3x |
| Maven | org.jenkins-ci.main:jenkins-core | 2.275 | GHSA-qv6f-rcv6-6q3x |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins project | Jenkins | unspecified – through 2.274unspecified – through LTS 2.263.1 |
References
- https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-1923 x_refsource_CONFIRM