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CVE-2023-4408

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2024-1803-03
Posted Apr 15, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-1803-03 - Updates for bind and bind-dyndb-ldap are now available for Red Hat Enterprise Linux 9.2 Extended Update Support.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-4408
SHA-256 | 3fcb6f4ad6fef1f8b75b5d5d4c731ba0866869aab8ebd25742671d16ddb0180e
Red Hat Security Advisory 2024-1800-03
Posted Apr 15, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-1800-03 - Updates for bind and bind-dyndb-ldap are now available for Red Hat Enterprise Linux 9.0 Extended Update Support.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-4408
SHA-256 | e3df1184e9249e0d7a062812d27b0c57794884f78be0a1f9ce04f80b27e75532
Red Hat Security Advisory 2024-1782-03
Posted Apr 15, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-1782-03 - An update for bind and dhcp is now available for Red Hat Enterprise Linux 8.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-4408
SHA-256 | 3521b85f513eaa72701379f6484a5a9fab8ebff8e911ac7a58cfec746bf9abed
Red Hat Security Advisory 2024-1789-03
Posted Apr 12, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-1789-03 - An update for bind is now available for Red Hat Enterprise Linux 9.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-4408
SHA-256 | 84bd7cf29f31db99a16698c475174af16965a7562a02b0006fce3148054a43e6
Red Hat Security Advisory 2024-1781-03
Posted Apr 11, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-1781-03 - An update for bind9.16 is now available for Red Hat Enterprise Linux 8.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-4408
SHA-256 | f9172f020815718f03fbbf2cb0e0498ec5c902cad67d0fbb67751f2f98e48c06
Red Hat Security Advisory 2024-1648-03
Posted Apr 3, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-1648-03 - An update for bind9.16 is now available for Red Hat Enterprise Linux 8.8 Extended Update Support.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-4408
SHA-256 | 82f304f4d513b12b8b22c429ed2690158dddda494699535d716c641e725e572a
Red Hat Security Advisory 2024-1647-03
Posted Apr 3, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-1647-03 - An update for bind9.16 is now available for Red Hat Enterprise Linux 8.6 Extended Update Support.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-4408
SHA-256 | 5d8c3dec00102fad072598516510d7d2705f46f10da7d9d54380c2c3c3c686c8
Ubuntu Security Notice USN-6642-1
Posted Feb 20, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6642-1 - Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled parsing large DNS messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Bind incorrectly handled validating DNSSEC messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2023-4408, CVE-2023-50387, CVE-2023-50868, CVE-2023-5517, CVE-2023-6516
SHA-256 | 59690fe75ddf72adb23e500a05f4e810c75b29c755af18781f7010d4def3deac
Debian Security Advisory 5621-1
Posted Feb 14, 2024
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5621-1 - Several vulnerabilities were discovered in BIND, a DNS server implementation, which may result in denial of service.

tags | advisory, denial of service, vulnerability
systems | linux, debian
advisories | CVE-2023-4408, CVE-2023-50387, CVE-2023-50868, CVE-2023-5517, CVE-2023-5679, CVE-2023-6516
SHA-256 | c8c07e1985655854dd15f5e76e52c42de91372742f9064ab63788fb3a08e6280
Ubuntu Security Notice USN-6633-1
Posted Feb 13, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6633-1 - Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled parsing large DNS messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Bind incorrectly handled validating DNSSEC messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2023-4408, CVE-2023-50387, CVE-2023-50868, CVE-2023-5517, CVE-2023-5679
SHA-256 | 054b5c6621a2c15204c6e7c406399951136064dab698608de345f5ebc5be679d
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