First published: Wed Jan 13 2021(Updated: )
A flaw was found in jenkins. A cross-site scripting (XSS) vulnerability is possible due to the contents of the notification bar responses not being properly escaped. The highest threat from this vulnerability is to data confidentiality and integrity.
Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com
Affected Software | Affected Version | How to fix |
---|---|---|
maven/org.jenkins-ci.main:jenkins-core | >=2.263.2<=2.274 | 2.275 |
maven/org.jenkins-ci.main:jenkins-core | <2.263.1 | 2.275 |
Jenkins Jenkins | <=2.263.1 | |
Jenkins Jenkins | <=2.274 | |
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 |
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(Appears in the following advisories)
The severity of CVE-2021-21603 is high due to its potential impact on data confidentiality and integrity.
To fix CVE-2021-21603, upgrade Jenkins to version 2.275 or later.
Jenkins versions 2.274 and earlier, including LTS 2.263.1 and earlier, are affected by CVE-2021-21603.
CVE-2021-21603 is a cross-site scripting (XSS) vulnerability.
Yes, CVE-2021-21603 can potentially lead to data breaches by compromising data confidentiality and integrity.