RHSA-2024:3741HighCVSS 7.5

Red Hat Security Advisory: bind, bind-dyndb-ldap, and dhcp security update

Published
June 10, 2024
Last Modified
August 6, 2026

🔗 CVE IDs covered (3)

CVE-2023-50387 →CVE-2023-50868 →CVE-2023-4408 →

📋 Description

CVE-2023-4408 — bind9: Parsing large DNS messages may cause excessive CPU load CVE-2023-50387 — bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator CVE-2023-50868 — bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources

🎯 Affected products200

  • Red Hat Enterprise Linux Client (v. 7)
  • Red Hat Enterprise Linux Client Optional (v. 7)
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • Red Hat Enterprise Linux Server (v. 7)
  • Red Hat Enterprise Linux Server Optional (v. 7)
  • Red Hat Enterprise Linux Workstation (v. 7)
  • Red Hat Enterprise Linux Workstation Optional (v. 7)
  • bind-32:9.11.4-26.P2.el7_9.16.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)
  • bind-32:9.11.4-26.P2.el7_9.16.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)
  • bind-32:9.11.4-26.P2.el7_9.16.s390x as a component of Red Hat Enterprise Linux Server (v. 7)
  • bind-32:9.11.4-26.P2.el7_9.16.src as a component of Red Hat Enterprise Linux Client (v. 7)
  • bind-32:9.11.4-26.P2.el7_9.16.src as a component of Red Hat Enterprise Linux Server (v. 7)
  • bind-32:9.11.4-26.P2.el7_9.16.src as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • bind-32:9.11.4-26.P2.el7_9.16.x86_64 as a component of Red Hat Enterprise Linux Client Optional (v. 7)
  • bind-32:9.11.4-26.P2.el7_9.16.x86_64 as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • bind-32:9.11.4-26.P2.el7_9.16.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)
  • bind-32:9.11.4-26.P2.el7_9.16.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • bind-chroot-32:9.11.4-26.P2.el7_9.16.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)
  • bind-chroot-32:9.11.4-26.P2.el7_9.16.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)
  • bind-chroot-32:9.11.4-26.P2.el7_9.16.s390x as a component of Red Hat Enterprise Linux Server (v. 7)
  • bind-chroot-32:9.11.4-26.P2.el7_9.16.x86_64 as a component of Red Hat Enterprise Linux Client Optional (v. 7)
  • bind-chroot-32:9.11.4-26.P2.el7_9.16.x86_64 as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • bind-chroot-32:9.11.4-26.P2.el7_9.16.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)
  • bind-chroot-32:9.11.4-26.P2.el7_9.16.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • bind-debuginfo-32:9.11.4-26.P2.el7_9.16.i686 as a component of Red Hat Enterprise Linux Client (v. 7)
  • bind-debuginfo-32:9.11.4-26.P2.el7_9.16.i686 as a component of Red Hat Enterprise Linux Client Optional (v. 7)
  • bind-debuginfo-32:9.11.4-26.P2.el7_9.16.i686 as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • bind-debuginfo-32:9.11.4-26.P2.el7_9.16.i686 as a component of Red Hat Enterprise Linux Server (v. 7)
  • bind-debuginfo-32:9.11.4-26.P2.el7_9.16.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • bind-debuginfo-32:9.11.4-26.P2.el7_9.16.i686 as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • +170 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, the BIND daemon (named) will be restarted automatically. Workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

🔗 References (6)