ubuntu-cve-2023-4408
Vulnerability from osv_ubuntu
Published
2024-02-13 00:00
Modified
2026-05-20 15:02
Summary
Details
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.
Severity
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "bind9",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
},
{
"binary_name": "bind9-host",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
},
{
"binary_name": "bind9utils",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
},
{
"binary_name": "dnsutils",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
},
{
"binary_name": "host",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
},
{
"binary_name": "libbind9-90",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
},
{
"binary_name": "libdns100",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
},
{
"binary_name": "libisc95",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
},
{
"binary_name": "libisccc90",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
},
{
"binary_name": "libisccfg90",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
},
{
"binary_name": "liblwres90",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
},
{
"binary_name": "lwresd",
"binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm13"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "bind9",
"purl": "pkg:deb/ubuntu/bind9@1:9.9.5.dfsg-3ubuntu0.19+esm13?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:9.9.3.dfsg.P2-4ubuntu1",
"1:9.9.3.dfsg.P2-4ubuntu2",
"1:9.9.3.dfsg.P2-4ubuntu3",
"1:9.9.5.dfsg-2",
"1:9.9.5.dfsg-3",
"1:9.9.5.dfsg-3ubuntu0.1",
"1:9.9.5.dfsg-3ubuntu0.2",
"1:9.9.5.dfsg-3ubuntu0.3",
"1:9.9.5.dfsg-3ubuntu0.4",
"1:9.9.5.dfsg-3ubuntu0.5",
"1:9.9.5.dfsg-3ubuntu0.6",
"1:9.9.5.dfsg-3ubuntu0.7",
"1:9.9.5.dfsg-3ubuntu0.8",
"1:9.9.5.dfsg-3ubuntu0.9",
"1:9.9.5.dfsg-3ubuntu0.10",
"1:9.9.5.dfsg-3ubuntu0.11",
"1:9.9.5.dfsg-3ubuntu0.12",
"1:9.9.5.dfsg-3ubuntu0.13",
"1:9.9.5.dfsg-3ubuntu0.14",
"1:9.9.5.dfsg-3ubuntu0.15",
"1:9.9.5.dfsg-3ubuntu0.16",
"1:9.9.5.dfsg-3ubuntu0.17",
"1:9.9.5.dfsg-3ubuntu0.18",
"1:9.9.5.dfsg-3ubuntu0.19",
"1:9.9.5.dfsg-3ubuntu0.19+esm1",
"1:9.9.5.dfsg-3ubuntu0.19+esm2",
"1:9.9.5.dfsg-3ubuntu0.19+esm3",
"1:9.9.5.dfsg-3ubuntu0.19+esm4",
"1:9.9.5.dfsg-3ubuntu0.19+esm5",
"1:9.9.5.dfsg-3ubuntu0.19+esm6",
"1:9.9.5.dfsg-3ubuntu0.19+esm7",
"1:9.9.5.dfsg-3ubuntu0.19+esm9",
"1:9.9.5.dfsg-3ubuntu0.19+esm10",
"1:9.9.5.dfsg-3ubuntu0.19+esm11",
"1:9.9.5.dfsg-3ubuntu0.19+esm12",
"1:9.9.5.dfsg-3ubuntu0.19+esm13"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "bind9",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "bind9-host",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "bind9utils",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "dnsutils",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "host",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "libbind9-140",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "libdns-export162",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "libdns162",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "libirs-export141",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "libirs141",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "libisc-export160",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "libisc160",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "libisccc-export140",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "libisccc140",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "libisccfg-export140",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "libisccfg140",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "liblwres141",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
},
{
"binary_name": "lwresd",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "bind9",
"purl": "pkg:deb/ubuntu/bind9@1:9.10.3.dfsg.P4-8ubuntu1.19+esm9?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:9.9.5.dfsg-11ubuntu1",
"1:9.9.5.dfsg-12",
"1:9.9.5.dfsg-12.1",
"1:9.9.5.dfsg-12.1ubuntu1",
"1:9.10.3.dfsg.P2-4",
"1:9.10.3.dfsg.P2-5",
"1:9.10.3.dfsg.P4-3",
"1:9.10.3.dfsg.P4-4",
"1:9.10.3.dfsg.P4-5",
"1:9.10.3.dfsg.P4-8",
"1:9.10.3.dfsg.P4-8ubuntu1",
"1:9.10.3.dfsg.P4-8ubuntu1.1",
"1:9.10.3.dfsg.P4-8ubuntu1.2",
"1:9.10.3.dfsg.P4-8ubuntu1.3",
"1:9.10.3.dfsg.P4-8ubuntu1.4",
"1:9.10.3.dfsg.P4-8ubuntu1.5",
"1:9.10.3.dfsg.P4-8ubuntu1.6",
"1:9.10.3.dfsg.P4-8ubuntu1.7",
"1:9.10.3.dfsg.P4-8ubuntu1.8",
"1:9.10.3.dfsg.P4-8ubuntu1.9",
"1:9.10.3.dfsg.P4-8ubuntu1.10",
"1:9.10.3.dfsg.P4-8ubuntu1.11",
"1:9.10.3.dfsg.P4-8ubuntu1.12",
"1:9.10.3.dfsg.P4-8ubuntu1.14",
"1:9.10.3.dfsg.P4-8ubuntu1.15",
"1:9.10.3.dfsg.P4-8ubuntu1.16",
"1:9.10.3.dfsg.P4-8ubuntu1.17",
"1:9.10.3.dfsg.P4-8ubuntu1.18",
"1:9.10.3.dfsg.P4-8ubuntu1.19",
"1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
"1:9.10.3.dfsg.P4-8ubuntu1.19+esm2",
"1:9.10.3.dfsg.P4-8ubuntu1.19+esm3",
"1:9.10.3.dfsg.P4-8ubuntu1.19+esm5",
"1:9.10.3.dfsg.P4-8ubuntu1.19+esm6",
"1:9.10.3.dfsg.P4-8ubuntu1.19+esm7",
"1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
"1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "bind9",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "bind9-host",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "bind9utils",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "dnsutils",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "libbind9-160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "libdns-export1100",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "libdns1100",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "libirs-export160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "libirs160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "libisc-export169",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "libisc169",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "libisccc-export160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "libisccc160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "libisccfg-export160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "libisccfg160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
},
{
"binary_name": "liblwres160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm4"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "bind9",
"purl": "pkg:deb/ubuntu/bind9@1:9.11.3+dfsg-1ubuntu1.19+esm4?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:9.10.3.dfsg.P4-12.6ubuntu1",
"1:9.11.2.P1-1ubuntu2",
"1:9.11.2.P1-1ubuntu3",
"1:9.11.2.P1-1ubuntu4",
"1:9.11.2.P1-1ubuntu5",
"1:9.11.3+dfsg-1ubuntu1",
"1:9.11.3+dfsg-1ubuntu1.1",
"1:9.11.3+dfsg-1ubuntu1.2",
"1:9.11.3+dfsg-1ubuntu1.3",
"1:9.11.3+dfsg-1ubuntu1.5",
"1:9.11.3+dfsg-1ubuntu1.7",
"1:9.11.3+dfsg-1ubuntu1.8",
"1:9.11.3+dfsg-1ubuntu1.9",
"1:9.11.3+dfsg-1ubuntu1.10",
"1:9.11.3+dfsg-1ubuntu1.11",
"1:9.11.3+dfsg-1ubuntu1.12",
"1:9.11.3+dfsg-1ubuntu1.13",
"1:9.11.3+dfsg-1ubuntu1.14",
"1:9.11.3+dfsg-1ubuntu1.15",
"1:9.11.3+dfsg-1ubuntu1.16",
"1:9.11.3+dfsg-1ubuntu1.17",
"1:9.11.3+dfsg-1ubuntu1.18",
"1:9.11.3+dfsg-1ubuntu1.19+esm1",
"1:9.11.3+dfsg-1ubuntu1.19+esm2",
"1:9.11.3+dfsg-1ubuntu1.19+esm3",
"1:9.11.3+dfsg-1ubuntu1.19+esm4"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "bind9",
"binary_version": "1:9.16.48-0ubuntu0.20.04.1"
},
{
"binary_name": "bind9-dnsutils",
"binary_version": "1:9.16.48-0ubuntu0.20.04.1"
},
{
"binary_name": "bind9-host",
"binary_version": "1:9.16.48-0ubuntu0.20.04.1"
},
{
"binary_name": "bind9-libs",
"binary_version": "1:9.16.48-0ubuntu0.20.04.1"
},
{
"binary_name": "bind9-utils",
"binary_version": "1:9.16.48-0ubuntu0.20.04.1"
},
{
"binary_name": "bind9utils",
"binary_version": "1:9.16.48-0ubuntu0.20.04.1"
},
{
"binary_name": "dnsutils",
"binary_version": "1:9.16.48-0ubuntu0.20.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "bind9",
"purl": "pkg:deb/ubuntu/bind9@1:9.16.48-0ubuntu0.20.04.1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.16.48-0ubuntu0.20.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:9.11.5.P4+dfsg-5.1ubuntu2",
"1:9.11.5.P4+dfsg-5.1ubuntu3",
"1:9.11.5.P4+dfsg-5.1ubuntu4",
"1:9.11.5.P4+dfsg-5.1ubuntu5",
"1:9.11.14+dfsg-1ubuntu1",
"1:9.11.14+dfsg-3ubuntu1",
"1:9.16.0-1ubuntu3",
"1:9.16.0-1ubuntu4",
"1:9.16.0-1ubuntu5",
"1:9.16.1-0ubuntu1",
"1:9.16.1-0ubuntu2",
"1:9.16.1-0ubuntu2.1",
"1:9.16.1-0ubuntu2.2",
"1:9.16.1-0ubuntu2.3",
"1:9.16.1-0ubuntu2.4",
"1:9.16.1-0ubuntu2.6",
"1:9.16.1-0ubuntu2.7",
"1:9.16.1-0ubuntu2.8",
"1:9.16.1-0ubuntu2.9",
"1:9.16.1-0ubuntu2.10",
"1:9.16.1-0ubuntu2.11",
"1:9.16.1-0ubuntu2.12",
"1:9.16.1-0ubuntu2.14",
"1:9.16.1-0ubuntu2.15",
"1:9.16.1-0ubuntu2.16"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libbind9-161",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
},
{
"binary_name": "libdns-export1109",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
},
{
"binary_name": "libdns1109",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
},
{
"binary_name": "libirs-export161",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
},
{
"binary_name": "libirs161",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
},
{
"binary_name": "libisc-export1105",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
},
{
"binary_name": "libisc1105",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
},
{
"binary_name": "libisccc-export161",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
},
{
"binary_name": "libisccc161",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
},
{
"binary_name": "libisccfg-export163",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
},
{
"binary_name": "libisccfg163",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
},
{
"binary_name": "liblwres161",
"binary_version": "1:9.11.16+dfsg-3~ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "bind9-libs",
"purl": "pkg:deb/ubuntu/bind9-libs@1:9.11.16+dfsg-3~ubuntu1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:9.11.16+dfsg-3~build1",
"1:9.11.16+dfsg-3~ubuntu1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "bind9",
"binary_version": "1:9.18.18-0ubuntu0.22.04.2"
},
{
"binary_name": "bind9-dnsutils",
"binary_version": "1:9.18.18-0ubuntu0.22.04.2"
},
{
"binary_name": "bind9-host",
"binary_version": "1:9.18.18-0ubuntu0.22.04.2"
},
{
"binary_name": "bind9-libs",
"binary_version": "1:9.18.18-0ubuntu0.22.04.2"
},
{
"binary_name": "bind9-utils",
"binary_version": "1:9.18.18-0ubuntu0.22.04.2"
},
{
"binary_name": "bind9utils",
"binary_version": "1:9.18.18-0ubuntu0.22.04.2"
},
{
"binary_name": "dnsutils",
"binary_version": "1:9.18.18-0ubuntu0.22.04.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "bind9",
"purl": "pkg:deb/ubuntu/bind9@1:9.18.18-0ubuntu0.22.04.2?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.18.18-0ubuntu0.22.04.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:9.16.15-1ubuntu1",
"1:9.16.15-1ubuntu2",
"1:9.16.15-1ubuntu3",
"1:9.18.0-2ubuntu1",
"1:9.18.0-2ubuntu2",
"1:9.18.0-2ubuntu3",
"1:9.18.1-1ubuntu1",
"1:9.18.1-1ubuntu1.1",
"1:9.18.1-1ubuntu1.2",
"1:9.18.1-1ubuntu1.3",
"1:9.18.12-0ubuntu0.22.04.1",
"1:9.18.12-0ubuntu0.22.04.2",
"1:9.18.12-0ubuntu0.22.04.3",
"1:9.18.18-0ubuntu0.22.04.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libbind9-161",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
},
{
"binary_name": "libdns-export1110",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
},
{
"binary_name": "libdns1110",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
},
{
"binary_name": "libirs-export161",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
},
{
"binary_name": "libirs161",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
},
{
"binary_name": "libisc-export1105",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
},
{
"binary_name": "libisc1105",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
},
{
"binary_name": "libisccc-export161",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
},
{
"binary_name": "libisccc161",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
},
{
"binary_name": "libisccfg-export163",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
},
{
"binary_name": "libisccfg163",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
},
{
"binary_name": "liblwres161",
"binary_version": "1:9.11.19+dfsg-2.1ubuntu3"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "bind9-libs",
"purl": "pkg:deb/ubuntu/bind9-libs@1:9.11.19+dfsg-2.1ubuntu3?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:9.11.19+dfsg-2.1ubuntu1",
"1:9.11.19+dfsg-2.1ubuntu2",
"1:9.11.19+dfsg-2.1ubuntu3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "isc-dhcp-client",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-client-ddns",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-common",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-keama",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-relay",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-server",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-server-ldap",
"binary_version": "4.4.3-P1-4ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "isc-dhcp",
"purl": "pkg:deb/ubuntu/isc-dhcp@4.4.3-P1-4ubuntu2?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.4.3-P1-2ubuntu5",
"4.4.3-P1-4ubuntu1",
"4.4.3-P1-4ubuntu2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "isc-dhcp-client",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-client-ddns",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-common",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-keama",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-relay",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-server",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-server-ldap",
"binary_version": "4.4.3-P1-4ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "isc-dhcp",
"purl": "pkg:deb/ubuntu/isc-dhcp@4.4.3-P1-4ubuntu2?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.4.3-P1-4ubuntu2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "isc-dhcp-client",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-client-ddns",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-common",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-keama",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-relay",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-server",
"binary_version": "4.4.3-P1-4ubuntu2"
},
{
"binary_name": "isc-dhcp-server-ldap",
"binary_version": "4.4.3-P1-4ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "isc-dhcp",
"purl": "pkg:deb/ubuntu/isc-dhcp@4.4.3-P1-4ubuntu2?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.4.3-P1-4ubuntu2"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2023-4408",
"modified": "2026-05-20T15:02:11Z",
"published": "2024-02-13T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-4408"
},
{
"type": "REPORT",
"url": "https://kb.isc.org/docs/cve-2023-4408"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6633-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6642-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-4408"
}
],
"related": [
"USN-6633-1",
"USN-6642-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2023-4408"
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…