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Red Hat: CVE-2023-4408: bind9: Parsing large DNS messages may cause excessive CPU load (Multiple Advisories)

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Red Hat: CVE-2023-4408: bind9: Parsing large DNS messages may cause excessive CPU load (Multiple Advisories)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
02/13/2024
Created
04/04/2024
Added
04/03/2024
Modified
05/01/2024

Description

The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers. This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.

Solution(s)

  • redhat-upgrade-bind
  • redhat-upgrade-bind-chroot
  • redhat-upgrade-bind-debuginfo
  • redhat-upgrade-bind-debugsource
  • redhat-upgrade-bind-devel
  • redhat-upgrade-bind-dnssec-doc
  • redhat-upgrade-bind-dnssec-utils
  • redhat-upgrade-bind-dnssec-utils-debuginfo
  • redhat-upgrade-bind-doc
  • redhat-upgrade-bind-dyndb-ldap
  • redhat-upgrade-bind-dyndb-ldap-debuginfo
  • redhat-upgrade-bind-dyndb-ldap-debugsource
  • redhat-upgrade-bind-export-devel
  • redhat-upgrade-bind-export-libs
  • redhat-upgrade-bind-export-libs-debuginfo
  • redhat-upgrade-bind-libs
  • redhat-upgrade-bind-libs-debuginfo
  • redhat-upgrade-bind-libs-lite
  • redhat-upgrade-bind-libs-lite-debuginfo
  • redhat-upgrade-bind-license
  • redhat-upgrade-bind-lite-devel
  • redhat-upgrade-bind-pkcs11
  • redhat-upgrade-bind-pkcs11-debuginfo
  • redhat-upgrade-bind-pkcs11-devel
  • redhat-upgrade-bind-pkcs11-libs
  • redhat-upgrade-bind-pkcs11-libs-debuginfo
  • redhat-upgrade-bind-pkcs11-utils
  • redhat-upgrade-bind-pkcs11-utils-debuginfo
  • redhat-upgrade-bind-sdb
  • redhat-upgrade-bind-sdb-chroot
  • redhat-upgrade-bind-sdb-debuginfo
  • redhat-upgrade-bind-utils
  • redhat-upgrade-bind-utils-debuginfo
  • redhat-upgrade-bind9-16
  • redhat-upgrade-bind9-16-chroot
  • redhat-upgrade-bind9-16-debuginfo
  • redhat-upgrade-bind9-16-debugsource
  • redhat-upgrade-bind9-16-devel
  • redhat-upgrade-bind9-16-dnssec-utils
  • redhat-upgrade-bind9-16-dnssec-utils-debuginfo
  • redhat-upgrade-bind9-16-doc
  • redhat-upgrade-bind9-16-libs
  • redhat-upgrade-bind9-16-libs-debuginfo
  • redhat-upgrade-bind9-16-license
  • redhat-upgrade-bind9-16-utils
  • redhat-upgrade-bind9-16-utils-debuginfo
  • redhat-upgrade-dhcp-client
  • redhat-upgrade-dhcp-client-debuginfo
  • redhat-upgrade-dhcp-common
  • redhat-upgrade-dhcp-debuginfo
  • redhat-upgrade-dhcp-debugsource
  • redhat-upgrade-dhcp-libs
  • redhat-upgrade-dhcp-libs-debuginfo
  • redhat-upgrade-dhcp-relay
  • redhat-upgrade-dhcp-relay-debuginfo
  • redhat-upgrade-dhcp-server
  • redhat-upgrade-dhcp-server-debuginfo
  • redhat-upgrade-python3-bind
  • redhat-upgrade-python3-bind9-16

References

  • CVE-2023-4408
  • RHSA-2024:1647
  • RHSA-2024:1648
  • RHSA-2024:1781
  • RHSA-2024:1782
  • RHSA-2024:1789
  • RHSA-2024:1800
  • RHSA-2024:1803
  • RHSA-2024:2551
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