RHSA-2023:5529HighCVSS 7.5

Red Hat Security Advisory: bind security update

Published
October 9, 2023
Last Modified
August 6, 2026

🔗 CVE IDs covered (1)

CVE-2023-3341 →

📋 Description

CVE-2023-3341 — bind: stack exhaustion in control channel code may lead to DoS

🎯 Affected products200

  • Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • Red Hat Enterprise Linux AppStream TUS (v.8.4)
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • Red Hat Enterprise Linux BaseOS TUS (v.8.4)
  • bind-32:9.11.26-4.el8_4.3.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • bind-32:9.11.26-4.el8_4.3.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • bind-32:9.11.26-4.el8_4.3.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • bind-32:9.11.26-4.el8_4.3.src as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • bind-32:9.11.26-4.el8_4.3.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • bind-32:9.11.26-4.el8_4.3.src as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.4)
  • bind-32:9.11.26-4.el8_4.3.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • bind-32:9.11.26-4.el8_4.3.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • bind-32:9.11.26-4.el8_4.3.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.4)
  • bind-chroot-32:9.11.26-4.el8_4.3.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • bind-chroot-32:9.11.26-4.el8_4.3.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • bind-chroot-32:9.11.26-4.el8_4.3.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • bind-chroot-32:9.11.26-4.el8_4.3.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • bind-chroot-32:9.11.26-4.el8_4.3.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • bind-chroot-32:9.11.26-4.el8_4.3.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.3.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.3.aarch64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.3.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.3.i686 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.3.i686 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.3.i686 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.3.i686 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.3.i686 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.3.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.4)
  • +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: By default, named only allows control-channel connections over the loopback interface, making this attack impossible to carry out over the network. When enabling remote access to the control channel’s configured TCP port, care should be taken to limit such access to trusted IP ranges on the network level, effectively preventing unauthorized parties from carrying out the attack described in this advisory.

🔗 References (4)