high
8
CWE
502
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2021-21604

First published: Wed Jan 13 2021(Updated: )

A flaw was found in jenkins. An attacker with permission to create or configure various objects to inject crafted content into Old Data Monitor can cause the instantiation of potentially unsafe objects once discarded by an administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com

Affected SoftwareAffected VersionHow to fix
redhat/jenkins<2.275
2.275
redhat/jenkins LTS<2.263.2
2.263.2
redhat/jenkins<0:2.263.3.1612433584-1.el7
0:2.263.3.1612433584-1.el7
redhat/conmon<2:2.0.21-1.rhaos4.5.el7
2:2.0.21-1.rhaos4.5.el7
redhat/jenkins<0:2.263.3.1612434332-1.el7
0:2.263.3.1612434332-1.el7
redhat/machine-config-daemon<0:4.5.0-202102050524.p0.git.2594.ff3b8c0.el8
0:4.5.0-202102050524.p0.git.2594.ff3b8c0.el8
redhat/openshift<0:4.5.0-202102050524.p0.git.0.9229406.el7
0:4.5.0-202102050524.p0.git.0.9229406.el7
redhat/openshift-ansible<0:4.5.0-202102031005.p0.git.0.c6839a2.el7
0:4.5.0-202102031005.p0.git.0.c6839a2.el7
redhat/openshift-clients<0:4.5.0-202102051529.p0.git.3612.61b096a.el8
0:4.5.0-202102051529.p0.git.3612.61b096a.el8
redhat/runc<0:1.0.0-72.rhaos4.5.giteadfc6b.el8
0:1.0.0-72.rhaos4.5.giteadfc6b.el8
redhat/jenkins<0:2.263.3.1612434510-1.el8
0:2.263.3.1612434510-1.el8
Jenkins Jenkins<=2.263.1
Jenkins Jenkins<=2.274
maven/org.jenkins-ci.main:jenkins-core>=2.264<=2.274
2.275
maven/org.jenkins-ci.main:jenkins-core<=2.263.1
2.263.2

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2021-21604?

    The severity of CVE-2021-21604 is high.

  • How can an attacker exploit CVE-2021-21604?

    An attacker with permission to create or configure various objects can inject crafted content into Old Data Monitor, causing the instantiation of potentially unsafe objects.

  • Which versions of Jenkins are affected by CVE-2021-21604?

    Jenkins versions 2.274 and earlier LTS 2.263.1 and earlier are affected by CVE-2021-21604.

  • How can I fix CVE-2021-21604?

    To fix CVE-2021-21604, update to Jenkins version 2.275 or Jenkins LTS version 2.263.2.

  • Where can I find more information about CVE-2021-21604?

    You can find more information about CVE-2021-21604 at the following references: [Red Hat Security Advisory RHSA-2021:0423](https://access.redhat.com/errata/RHSA-2021:0423), [CVE-2021-21604](https://access.redhat.com/security/cve/cve-2021-21604), [Red Hat Security Advisory RHSA-2021:0429](https://access.redhat.com/errata/RHSA-2021:0429).

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