RHSA-2023:5474HighCVSS 7.5

Red Hat Security Advisory: bind security update

Published
October 5, 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 products173

  • Red Hat Enterprise Linux AppStream (v. 8)
  • Red Hat Enterprise Linux BaseOS (v. 8)
  • bind-32:9.11.36-8.el8_8.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-32:9.11.36-8.el8_8.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-32:9.11.36-8.el8_8.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-32:9.11.36-8.el8_8.2.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bind-32:9.11.36-8.el8_8.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-chroot-32:9.11.36-8.el8_8.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-chroot-32:9.11.36-8.el8_8.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-chroot-32:9.11.36-8.el8_8.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-chroot-32:9.11.36-8.el8_8.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-debuginfo-32:9.11.36-8.el8_8.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-debuginfo-32:9.11.36-8.el8_8.2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bind-debuginfo-32:9.11.36-8.el8_8.2.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-debuginfo-32:9.11.36-8.el8_8.2.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bind-debuginfo-32:9.11.36-8.el8_8.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-debuginfo-32:9.11.36-8.el8_8.2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bind-debuginfo-32:9.11.36-8.el8_8.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-debuginfo-32:9.11.36-8.el8_8.2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bind-debuginfo-32:9.11.36-8.el8_8.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-debuginfo-32:9.11.36-8.el8_8.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bind-debugsource-32:9.11.36-8.el8_8.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-debugsource-32:9.11.36-8.el8_8.2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bind-debugsource-32:9.11.36-8.el8_8.2.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-debugsource-32:9.11.36-8.el8_8.2.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bind-debugsource-32:9.11.36-8.el8_8.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-debugsource-32:9.11.36-8.el8_8.2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bind-debugsource-32:9.11.36-8.el8_8.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • bind-debugsource-32:9.11.36-8.el8_8.2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bind-debugsource-32:9.11.36-8.el8_8.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • +143 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)