Red Hat Security Advisory: OpenShift Container Platform 3.11.394 bug fix and security update

Fixed packages 4

Vulnerabilities 19

• High 8.0
  CVE-2021-21604

  Improper handling of REST API XML deserialization errors in Jenkins

  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 adm…

  Jenkins Project Jenkins org.jenkins-ci.main:jenkins-core jenkins Web / CMS Alpine Maven
  Jan 13, 2021
• High 8.0
  CVE-2021-21605

  Path traversal vulnerability in Jenkins agent names

  Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows users with Agent/Configure permission to choose agent names that cause Jenkins to override the global `config.xml` file.

  Jenkins Project Jenkins org.jenkins-ci.main:jenkins-core jenkins Web / CMS Alpine Maven
  Jan 13, 2021
• High 7.5
  CVE-2020-11979

  Code injection in Apache Ant

  As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said prot…

  ant ant apache-ant gradle Debian Ubuntu Alpine Maven
  Oct 1, 2020
• High 7.5
  CVE-2020-25658

  Timing attacks in python-rsa

  It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA.

  Sybren A. Stüvel python-rsa rsa python-rsa Debian Ubuntu PyPI
  Nov 12, 2020
• Medium 6.5
  CVE-2020-2304

  XXE vulnerability in Jenkins Subversion Plugin

  Jenkins Subversion Plugin 2.13.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

  Jenkins Project Jenkins Subversion Plugin subversion org.jenkins-ci.plugins:subversion Web / CMS Azure Linux Maven
  Nov 4, 2020
• Medium 6.5
  CVE-2020-2305

  XXE vulnerability in Jenkins Mercurial Plugin

  Jenkins Mercurial Plugin 2.11 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

  Jenkins Project Jenkins Mercurial Plugin org.jenkins-ci.plugins:mercurial Web / CMS Maven
  Nov 4, 2020
• Medium 6.5
  CVE-2021-21602

  Arbitrary file read vulnerability in workspace browsers in Jenkins

  Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows reading arbitrary files using the file browser for workspaces and archived artifacts by following symlinks.

  Jenkins Project Jenkins org.jenkins-ci.main:jenkins-core jenkins Web / CMS Alpine Maven
  Jan 13, 2021
• Medium 6.5
  CVE-2021-21607

  Excessive memory allocation in graph URLs leads to denial of service in Jenkins

  Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not limit sizes provided as query parameters to graph-rendering URLs, allowing attackers to request crafted URLs that use all available memory in Jenkins, potentially leading to out of memory errors.

  Jenkins Project Jenkins org.jenkins-ci.main:jenkins-core jenkins Web / CMS Alpine Maven
  Jan 13, 2021
• Medium 6.3
  CVE-2020-1945

  Sensitive Data Exposure in Apache Ant

  Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7 uses the default temporary directory identified by the Java system property java.io.tmpdir for several tasks and may thus leak sensitive information. The fixcrlf and replaceregexp tasks also copy files from the te…

  ant ant apache-ant org.apache.ant:ant Debian Ubuntu Alpine Maven
  May 14, 2020
• Medium 6.1
  CVE-2021-21610

  Reflected XSS vulnerability in Jenkins markup formatter preview

  Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not implement any restrictions for the URL rendering a formatted preview of markup passed as a query parameter, resulting in a reflected cross-site scripting (XSS) vulnerability if the configured markup …

  Jenkins Project Jenkins org.jenkins-ci.main:jenkins-core jenkins Web / CMS Alpine Maven
  Jan 13, 2021
• Medium 5.4
  CVE-2021-21603

  XSS vulnerability in Jenkins notification bar

  Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape notification bar response contents, resulting in a cross-site scripting (XSS) vulnerability.

  Jenkins Project Jenkins org.jenkins-ci.main:jenkins-core jenkins Web / CMS Alpine Maven
  Jan 13, 2021
• Medium 5.4
  CVE-2021-21608

  Stored XSS vulnerability in Jenkins button labels

  Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape button labels in the Jenkins UI, resulting in a cross-site scripting (XSS) vulnerability exploitable by attackers with the ability to control button labels.

  Jenkins Project Jenkins org.jenkins-ci.main:jenkins-core jenkins Web / CMS Alpine Maven
  Jan 13, 2021
• Medium 5.4
  CVE-2021-21611

  Stored XSS vulnerability in Jenkins on new item page

  Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape display names and IDs of item types shown on the New Item page, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to specify display names or IDs of …

  Jenkins Project Jenkins org.jenkins-ci.main:jenkins-core jenkins Web / CMS Alpine Maven
  Jan 13, 2021
• Medium 5.3
  CVE-2021-21609

  Missing permission check for paths with specific prefix in Jenkins

  Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not correctly match requested URLs to the list of always accessible paths, allowing attackers without Overall/Read permission to access some URLs as if they did have Overall/Read permission.

  Jenkins Project Jenkins org.jenkins-ci.main:jenkins-core jenkins Web / CMS Alpine Maven
  Jan 13, 2021
• Medium 4.3
  CVE-2020-2306

  Missing Authorization in Jenkins Mercurial Plugin

  A missing permission check in Jenkins Mercurial Plugin 2.11 and earlier allows attackers with Overall/Read permission to obtain a list of names of configured Mercurial installations.

  Jenkins Project Jenkins Mercurial Plugin org.jenkins-ci.plugins:mercurial Web / CMS Maven
  Nov 4, 2020
• Medium 4.3
  CVE-2020-2307

  Exposure of Sensitive Information to an Unauthorized Actor in Jenkins Kubernetes Plugin

  Jenkins Kubernetes Plugin 1.27.3 and earlier allows low-privilege users to access possibly sensitive Jenkins controller environment variables.

  Jenkins Project Jenkins Kubernetes Plugin org.csanchez.jenkins.plugins:kubernetes Web / CMS Maven
  Nov 4, 2020
• Medium 4.3
  CVE-2020-2308

  Missing Authorization in Jenkins Kubernetes Plugin

  A missing permission check in Jenkins Kubernetes Plugin 1.27.3 and earlier allows attackers with Overall/Read permission to list global pod template names.

  Jenkins Project Jenkins Kubernetes Plugin org.csanchez.jenkins.plugins:kubernetes Web / CMS Maven
  Nov 4, 2020
• Medium 4.3
  CVE-2020-2309

  Missing authorization in Jenkins Kubernetes Plugin

  A missing/An incorrect permission check in Jenkins Kubernetes Plugin 1.27.3 and earlier allows attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins.

  Jenkins Project Jenkins Kubernetes Plugin org.csanchez.jenkins.plugins:kubernetes Web / CMS Maven
  Nov 4, 2020
• Medium 4.3
  CVE-2021-21606

  Arbitrary file existence check in file fingerprints in Jenkins

  Jenkins 2.274 and earlier, LTS 2.263.1 and earlier improperly validates the format of a provided fingerprint ID when checking for its existence allowing an attacker to check for the existence of XML files with a short path.

  Jenkins Project Jenkins org.jenkins-ci.main:jenkins-core jenkins Web / CMS Alpine Maven
  Jan 13, 2021

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1837444
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1849003
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1873346
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1879407
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1889972
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1895939
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1895940
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1895941
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1895945
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1895946
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1895947
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1903699
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1903702
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1918392
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1920567
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1921353
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1924614
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1924811
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1929170
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1929216
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_0637.json
• report
  https://access.redhat.com/security/cve/CVE-2020-1945
• advisory
  https://www.cve.org/CVERecord?id=CVE-2020-1945
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2020-1945
• report
  https://access.redhat.com/security/cve/CVE-2020-2304
• advisory
  https://www.cve.org/CVERecord?id=CVE-2020-2304
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2020-2304
• article
  https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2145
• report
  https://access.redhat.com/security/cve/CVE-2020-2305
• advisory
  https://www.cve.org/CVERecord?id=CVE-2020-2305
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2020-2305
• article
  https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2115
• report
  https://access.redhat.com/security/cve/CVE-2020-2306
• advisory
  https://www.cve.org/CVERecord?id=CVE-2020-2306
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2020-2306
• article
  https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2104
• report
  https://access.redhat.com/security/cve/CVE-2020-2307
• advisory
  https://www.cve.org/CVERecord?id=CVE-2020-2307