Red Hat Security Advisory: OpenShift Container Platform 4.7.19 packages and security update

Fixed packages 29

Vulnerabilities 2

• High 7.8
  CVE-2021-3560 Exploited Public exploit EPSS 22%

  It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privil…

  policykit-1 policykit-1 polkit Debian Ubuntu Alpine
  Feb 16, 2022

  KEV May 12, 2023
• High 7.4
  CVE-2021-25217

  A buffer overrun in lease file parsing code can be used to exploit a common vulnerability shared by dhcpd and dhclient

  In ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16, ISC DHCP 4.4.0 -> 4.4.2 (Other branches of ISC DHCP (i.e., releases in the 4.0.x series or lower and releases in the 4.3.x series) are beyond their End-of-Life (EOL) and no longer supported by ISC. From inspection it is …

  ISC ISC DHCP isc-dhcp isc-dhcp Debian Ubuntu Azure Linux Alpine
  May 26, 2021

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1961710
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1963258
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1976688
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_2555.json
• report
  https://access.redhat.com/security/cve/CVE-2021-3560
• advisory
  https://www.cve.org/CVERecord?id=CVE-2021-3560
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2021-3560
• article
  https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
• article
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog
• report
  https://access.redhat.com/security/cve/CVE-2021-25217
• advisory
  https://www.cve.org/CVERecord?id=CVE-2021-25217
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2021-25217
• article
  https://kb.isc.org/docs/cve-2021-25217