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{
"schema_version": "1.7.0",
"id": "USN-4366-1",
"summary": "exim4 vulnerability",
"details": "It was discovered that Exim incorrectly handled certain inputs.\nAn remote attacker could possibly use this issue to access sensitive\ninformation or authentication bypass.\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2020-12783"
],
"related": [],
"published": "2020-05-19T12:55:02Z",
"modified": "2026-06-29T10:52:45Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "exim4",
"purl": "pkg:deb/ubuntu/exim4@4.82-3ubuntu2.4+esm2?arch=source&distro=trusty/esm"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.82-3ubuntu2.4+esm2"
}
]
}
],
"versions": [
"4.80-7ubuntu3",
"4.80-7ubuntu4",
"4.80-9ubuntu1",
"4.80-9ubuntu2",
"4.82-3ubuntu1",
"4.82-3ubuntu2",
"4.82-3ubuntu2.1",
"4.82-3ubuntu2.2",
"4.82-3ubuntu2.3",
"4.82-3ubuntu2.4",
"4.82-3ubuntu2.4+esm1"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "exim4",
"binary_version": "4.82-3ubuntu2.4+esm2"
},
{
"binary_name": "exim4-base",
"binary_version": "4.82-3ubuntu2.4+esm2"
},
{
"binary_name": "exim4-config",
"binary_version": "4.82-3ubuntu2.4+esm2"
},
{
"binary_name": "exim4-daemon-heavy",
"binary_version": "4.82-3ubuntu2.4+esm2"
},
{
"binary_name": "exim4-daemon-light",
"binary_version": "4.82-3ubuntu2.4+esm2"
},
{
"binary_name": "eximon4",
"binary_version": "4.82-3ubuntu2.4+esm2"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"cves": [
{
"id": "CVE-2020-12783",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "exim4",
"purl": "pkg:deb/ubuntu/exim4@4.86.2-2ubuntu2.6?arch=source&distro=xenial"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.86.2-2ubuntu2.6"
}
]
}
],
"versions": [
"4.86-3ubuntu1",
"4.86-7ubuntu1",
"4.86-7ubuntu2",
"4.86-7ubuntu3",
"4.86.2-2ubuntu1",
"4.86.2-2ubuntu2",
"4.86.2-2ubuntu2.1",
"4.86.2-2ubuntu2.2",
"4.86.2-2ubuntu2.3",
"4.86.2-2ubuntu2.4",
"4.86.2-2ubuntu2.5"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "exim4",
"binary_version": "4.86.2-2ubuntu2.6"
},
{
"binary_name": "exim4-base",
"binary_version": "4.86.2-2ubuntu2.6"
},
{
"binary_name": "exim4-config",
"binary_version": "4.86.2-2ubuntu2.6"
},
{
"binary_name": "exim4-daemon-heavy",
"binary_version": "4.86.2-2ubuntu2.6"
},
{
"binary_name": "exim4-daemon-light",
"binary_version": "4.86.2-2ubuntu2.6"
},
{
"binary_name": "eximon4",
"binary_version": "4.86.2-2ubuntu2.6"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:16.04:LTS",
"cves": [
{
"id": "CVE-2020-12783",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "exim4",
"purl": "pkg:deb/ubuntu/exim4@4.90.1-1ubuntu1.5?arch=source&distro=bionic"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.90.1-1ubuntu1.5"
}
]
}
],
"versions": [
"4.89-5ubuntu1",
"4.89-9ubuntu1",
"4.89-9ubuntu2",
"4.89-9ubuntu3",
"4.89-9ubuntu4",
"4.90.1-1ubuntu1",
"4.90.1-1ubuntu1.1",
"4.90.1-1ubuntu1.2",
"4.90.1-1ubuntu1.3",
"4.90.1-1ubuntu1.4"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "exim4",
"binary_version": "4.90.1-1ubuntu1.5"
},
{
"binary_name": "exim4-base",
"binary_version": "4.90.1-1ubuntu1.5"
},
{
"binary_name": "exim4-config",
"binary_version": "4.90.1-1ubuntu1.5"
},
{
"binary_name": "exim4-daemon-heavy",
"binary_version": "4.90.1-1ubuntu1.5"
},
{
"binary_name": "exim4-daemon-light",
"binary_version": "4.90.1-1ubuntu1.5"
},
{
"binary_name": "eximon4",
"binary_version": "4.90.1-1ubuntu1.5"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:18.04:LTS",
"cves": [
{
"id": "CVE-2020-12783",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "exim4",
"purl": "pkg:deb/ubuntu/exim4@4.93-13ubuntu1.1?arch=source&distro=focal"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.93-13ubuntu1.1"
}
]
}
],
"versions": [
"4.92.1-1ubuntu3",
"4.92.1-1ubuntu4",
"4.93~RC2-1ubuntu1",
"4.93-9ubuntu1",
"4.93-11ubuntu1",
"4.93-12ubuntu1",
"4.93-13ubuntu1"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "exim4",
"binary_version": "4.93-13ubuntu1.1"
},
{
"binary_name": "exim4-base",
"binary_version": "4.93-13ubuntu1.1"
},
{
"binary_name": "exim4-config",
"binary_version": "4.93-13ubuntu1.1"
},
{
"binary_name": "exim4-daemon-heavy",
"binary_version": "4.93-13ubuntu1.1"
},
{
"binary_name": "exim4-daemon-light",
"binary_version": "4.93-13ubuntu1.1"
},
{
"binary_name": "eximon4",
"binary_version": "4.93-13ubuntu1.1"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:20.04:LTS",
"cves": [
{
"id": "CVE-2020-12783",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4366-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-12783"
}
]
}