usn-4934-1
Vulnerability from osv_ubuntu
Published
2021-05-04 14:00
Modified
2026-04-22 07:36
Summary
exim4 vulnerabilities
Details
It was discovered that Exim contained multiple security issues. An attacker could use these issues to cause a denial of service, execute arbitrary code remotely, obtain sensitive information, or escalate local privileges.
References
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2020-28007",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28008",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28009",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28010",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28011",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28012",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28013",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28014",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28015",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28017",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28018",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28019",
"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"
}
]
},
{
"id": "CVE-2020-28020",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28021",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28022",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28023",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28024",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28025",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28026",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-27216",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "exim4",
"binary_version": "4.90.1-1ubuntu1.8"
},
{
"binary_name": "exim4-base",
"binary_version": "4.90.1-1ubuntu1.8"
},
{
"binary_name": "exim4-config",
"binary_version": "4.90.1-1ubuntu1.8"
},
{
"binary_name": "exim4-daemon-heavy",
"binary_version": "4.90.1-1ubuntu1.8"
},
{
"binary_name": "exim4-daemon-light",
"binary_version": "4.90.1-1ubuntu1.8"
},
{
"binary_name": "eximon4",
"binary_version": "4.90.1-1ubuntu1.8"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "exim4",
"purl": "pkg:deb/ubuntu/exim4@4.90.1-1ubuntu1.8?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.90.1-1ubuntu1.8"
}
],
"type": "ECOSYSTEM"
}
],
"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",
"4.90.1-1ubuntu1.5"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2020-28007",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28008",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28009",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28010",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28011",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28012",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28013",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28014",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28015",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28017",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28018",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28019",
"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"
}
]
},
{
"id": "CVE-2020-28021",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28022",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28023",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28024",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28025",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2020-28026",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-27216",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "exim4",
"binary_version": "4.93-13ubuntu1.5"
},
{
"binary_name": "exim4-base",
"binary_version": "4.93-13ubuntu1.5"
},
{
"binary_name": "exim4-config",
"binary_version": "4.93-13ubuntu1.5"
},
{
"binary_name": "exim4-daemon-heavy",
"binary_version": "4.93-13ubuntu1.5"
},
{
"binary_name": "exim4-daemon-light",
"binary_version": "4.93-13ubuntu1.5"
},
{
"binary_name": "eximon4",
"binary_version": "4.93-13ubuntu1.5"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "exim4",
"purl": "pkg:deb/ubuntu/exim4@4.93-13ubuntu1.5?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.93-13ubuntu1.5"
}
],
"type": "ECOSYSTEM"
}
],
"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",
"4.93-13ubuntu1.1"
]
}
],
"aliases": [],
"details": "It was discovered that Exim contained multiple security issues. An attacker\ncould use these issues to cause a denial of service, execute arbitrary\ncode remotely, obtain sensitive information, or escalate local privileges.\n",
"id": "USN-4934-1",
"modified": "2026-04-22T07:36:59Z",
"published": "2021-05-04T14:00:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4934-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28007"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28008"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28009"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28010"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28011"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28012"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28013"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28014"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28015"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28016"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28017"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28018"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28019"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28020"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28021"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28022"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28023"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28024"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28025"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-28026"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-27216"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "exim4 vulnerabilities",
"upstream": [
"UBUNTU-CVE-2020-28007",
"UBUNTU-CVE-2020-28008",
"UBUNTU-CVE-2020-28009",
"UBUNTU-CVE-2020-28010",
"UBUNTU-CVE-2020-28011",
"UBUNTU-CVE-2020-28012",
"UBUNTU-CVE-2020-28013",
"UBUNTU-CVE-2020-28014",
"UBUNTU-CVE-2020-28015",
"UBUNTU-CVE-2020-28016",
"UBUNTU-CVE-2020-28017",
"UBUNTU-CVE-2020-28018",
"UBUNTU-CVE-2020-28019",
"UBUNTU-CVE-2020-28020",
"UBUNTU-CVE-2020-28021",
"UBUNTU-CVE-2020-28022",
"UBUNTU-CVE-2020-28023",
"UBUNTU-CVE-2020-28024",
"UBUNTU-CVE-2020-28025",
"UBUNTU-CVE-2020-28026",
"UBUNTU-CVE-2021-27216"
]
}
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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.
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