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vuln-ubuntu/data/osv/usn/USN-3956-1.json
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{
"schema_version": "1.7.0",
"id": "USN-3956-1",
"summary": "bind9 vulnerability",
"details": "It was discovered that Bind incorrectly handled limiting the number of\nsimultaneous TCP clients. A remote attacker could possibly use this issue\nto cause Bind to consume resources, leading to a denial of service.\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2018-5743"
],
"related": [],
"published": "2019-04-25T13:53:00Z",
"modified": "2026-04-22T07:36:36Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "bind9",
"purl": "pkg:deb/ubuntu/bind9@1:9.10.3.dfsg.P4-8ubuntu1.14?arch=source&distro=xenial"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.10.3.dfsg.P4-8ubuntu1.14"
}
]
}
],
"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"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "bind9",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "bind9-host",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "bind9utils",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "dnsutils",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "host",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "libbind9-140",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "libdns-export162",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "libdns162",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "libirs-export141",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "libirs141",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "libisc-export160",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "libisc160",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "libisccc-export140",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "libisccc140",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "libisccfg-export140",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "libisccfg140",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "liblwres141",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
},
{
"binary_name": "lwresd",
"binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.14"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:16.04:LTS",
"cves": [
{
"id": "CVE-2018-5743",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "bind9",
"purl": "pkg:deb/ubuntu/bind9@1:9.11.3+dfsg-1ubuntu1.7?arch=source&distro=bionic"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.11.3+dfsg-1ubuntu1.7"
}
]
}
],
"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"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "bind9",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "bind9-host",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "bind9utils",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "dnsutils",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "libbind9-160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "libdns-export1100",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "libdns1100",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "libirs-export160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "libirs160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "libisc-export169",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "libisc169",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "libisccc-export160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "libisccc160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "libisccfg-export160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "libisccfg160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
},
{
"binary_name": "liblwres160",
"binary_version": "1:9.11.3+dfsg-1ubuntu1.7"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:18.04:LTS",
"cves": [
{
"id": "CVE-2018-5743",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-3956-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2018-5743"
}
]
}
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