usn-4490-1
Vulnerability from osv_ubuntu
Published
2020-09-08 11:29
Modified
2026-04-22 07:36
Summary
xorg-server, xorg-server-hwe-16.04, xorg-server-hwe-18.04 vulnerability
Details
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the XkbSetNames function. A local attacker could possibly use this issue to escalate privileges.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2020-14345",
"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"
}
]
}
],
"ecosystem": "Ubuntu:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "xdmx",
"binary_version": "2:1.18.4-0ubuntu0.10"
},
{
"binary_name": "xdmx-tools",
"binary_version": "2:1.18.4-0ubuntu0.10"
},
{
"binary_name": "xmir",
"binary_version": "2:1.18.4-0ubuntu0.10"
},
{
"binary_name": "xnest",
"binary_version": "2:1.18.4-0ubuntu0.10"
},
{
"binary_name": "xorg-server-source",
"binary_version": "2:1.18.4-0ubuntu0.10"
},
{
"binary_name": "xserver-common",
"binary_version": "2:1.18.4-0ubuntu0.10"
},
{
"binary_name": "xserver-xephyr",
"binary_version": "2:1.18.4-0ubuntu0.10"
},
{
"binary_name": "xserver-xorg-core",
"binary_version": "2:1.18.4-0ubuntu0.10"
},
{
"binary_name": "xserver-xorg-legacy",
"binary_version": "2:1.18.4-0ubuntu0.10"
},
{
"binary_name": "xserver-xorg-xmir",
"binary_version": "2:1.18.4-0ubuntu0.10"
},
{
"binary_name": "xvfb",
"binary_version": "2:1.18.4-0ubuntu0.10"
},
{
"binary_name": "xwayland",
"binary_version": "2:1.18.4-0ubuntu0.10"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "xorg-server",
"purl": "pkg:deb/ubuntu/xorg-server@2:1.18.4-0ubuntu0.10?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:1.18.4-0ubuntu0.10"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:1.17.2-1ubuntu9",
"2:1.17.2-1ubuntu10",
"2:1.17.3-2ubuntu1",
"2:1.17.3-2ubuntu2",
"2:1.17.3-2ubuntu3",
"2:1.17.3-2ubuntu4",
"2:1.18.1-1ubuntu3",
"2:1.18.1-1ubuntu4",
"2:1.18.3-1ubuntu1",
"2:1.18.3-1ubuntu2",
"2:1.18.3-1ubuntu2.2",
"2:1.18.3-1ubuntu2.3",
"2:1.18.4-0ubuntu0.1",
"2:1.18.4-0ubuntu0.2",
"2:1.18.4-0ubuntu0.3",
"2:1.18.4-0ubuntu0.4",
"2:1.18.4-0ubuntu0.6",
"2:1.18.4-0ubuntu0.7",
"2:1.18.4-0ubuntu0.8",
"2:1.18.4-0ubuntu0.9"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2020-14345",
"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"
}
]
}
],
"ecosystem": "Ubuntu:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "xmir-hwe-16.04",
"binary_version": "2:1.19.6-1ubuntu4.1~16.04.4"
},
{
"binary_name": "xorg-server-source-hwe-16.04",
"binary_version": "2:1.19.6-1ubuntu4.1~16.04.4"
},
{
"binary_name": "xserver-xephyr-hwe-16.04",
"binary_version": "2:1.19.6-1ubuntu4.1~16.04.4"
},
{
"binary_name": "xserver-xorg-core-hwe-16.04",
"binary_version": "2:1.19.6-1ubuntu4.1~16.04.4"
},
{
"binary_name": "xserver-xorg-dev-hwe-16.04",
"binary_version": "2:1.19.6-1ubuntu4.1~16.04.4"
},
{
"binary_name": "xserver-xorg-legacy-hwe-16.04",
"binary_version": "2:1.19.6-1ubuntu4.1~16.04.4"
},
{
"binary_name": "xwayland-hwe-16.04",
"binary_version": "2:1.19.6-1ubuntu4.1~16.04.4"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "xorg-server-hwe-16.04",
"purl": "pkg:deb/ubuntu/xorg-server-hwe-16.04@2:1.19.6-1ubuntu4.1~16.04.4?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:1.19.6-1ubuntu4.1~16.04.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:1.18.4-1ubuntu6.1~16.04.1",
"2:1.18.4-1ubuntu6.1~16.04.2",
"2:1.19.3-1ubuntu1~16.04.2",
"2:1.19.3-1ubuntu1~16.04.3",
"2:1.19.3-1ubuntu1~16.04.4",
"2:1.19.5-0ubuntu2~16.04.1",
"2:1.19.6-1ubuntu4~16.04.1",
"2:1.19.6-1ubuntu4.1~16.04.1",
"2:1.19.6-1ubuntu4.1~16.04.2",
"2:1.19.6-1ubuntu4.1~16.04.3"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2020-14345",
"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"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "xdmx",
"binary_version": "2:1.19.6-1ubuntu4.6"
},
{
"binary_name": "xdmx-tools",
"binary_version": "2:1.19.6-1ubuntu4.6"
},
{
"binary_name": "xmir",
"binary_version": "2:1.19.6-1ubuntu4.6"
},
{
"binary_name": "xnest",
"binary_version": "2:1.19.6-1ubuntu4.6"
},
{
"binary_name": "xorg-server-source",
"binary_version": "2:1.19.6-1ubuntu4.6"
},
{
"binary_name": "xserver-common",
"binary_version": "2:1.19.6-1ubuntu4.6"
},
{
"binary_name": "xserver-xephyr",
"binary_version": "2:1.19.6-1ubuntu4.6"
},
{
"binary_name": "xserver-xorg-core",
"binary_version": "2:1.19.6-1ubuntu4.6"
},
{
"binary_name": "xserver-xorg-legacy",
"binary_version": "2:1.19.6-1ubuntu4.6"
},
{
"binary_name": "xserver-xorg-xmir",
"binary_version": "2:1.19.6-1ubuntu4.6"
},
{
"binary_name": "xvfb",
"binary_version": "2:1.19.6-1ubuntu4.6"
},
{
"binary_name": "xwayland",
"binary_version": "2:1.19.6-1ubuntu4.6"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "xorg-server",
"purl": "pkg:deb/ubuntu/xorg-server@2:1.19.6-1ubuntu4.6?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:1.19.6-1ubuntu4.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:1.19.5-0ubuntu2",
"2:1.19.6-1ubuntu1",
"2:1.19.6-1ubuntu2",
"2:1.19.6-1ubuntu3",
"2:1.19.6-1ubuntu4",
"2:1.19.6-1ubuntu4.1",
"2:1.19.6-1ubuntu4.2",
"2:1.19.6-1ubuntu4.3",
"2:1.19.6-1ubuntu4.4",
"2:1.19.6-1ubuntu4.5"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2020-14345",
"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"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "xorg-server-source-hwe-18.04",
"binary_version": "2:1.20.8-2ubuntu2.2~18.04.3"
},
{
"binary_name": "xserver-xephyr-hwe-18.04",
"binary_version": "2:1.20.8-2ubuntu2.2~18.04.3"
},
{
"binary_name": "xserver-xorg-core-hwe-18.04",
"binary_version": "2:1.20.8-2ubuntu2.2~18.04.3"
},
{
"binary_name": "xserver-xorg-dev-hwe-18.04",
"binary_version": "2:1.20.8-2ubuntu2.2~18.04.3"
},
{
"binary_name": "xserver-xorg-legacy-hwe-18.04",
"binary_version": "2:1.20.8-2ubuntu2.2~18.04.3"
},
{
"binary_name": "xwayland-hwe-18.04",
"binary_version": "2:1.20.8-2ubuntu2.2~18.04.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "xorg-server-hwe-18.04",
"purl": "pkg:deb/ubuntu/xorg-server-hwe-18.04@2:1.20.8-2ubuntu2.2~18.04.3?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:1.20.8-2ubuntu2.2~18.04.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:1.20.1-3ubuntu2.1~18.04.1",
"2:1.20.4-1ubuntu3~18.04.1",
"2:1.20.5+git20191008-0ubuntu1~18.04.1",
"2:1.20.8-2ubuntu2.1~18.04.1",
"2:1.20.8-2ubuntu2.2~18.04.1",
"2:1.20.8-2ubuntu2.2~18.04.2"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2020-14345",
"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"
}
]
}
],
"ecosystem": "Ubuntu:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "xdmx",
"binary_version": "2:1.20.8-2ubuntu2.4"
},
{
"binary_name": "xdmx-tools",
"binary_version": "2:1.20.8-2ubuntu2.4"
},
{
"binary_name": "xnest",
"binary_version": "2:1.20.8-2ubuntu2.4"
},
{
"binary_name": "xorg-server-source",
"binary_version": "2:1.20.8-2ubuntu2.4"
},
{
"binary_name": "xserver-common",
"binary_version": "2:1.20.8-2ubuntu2.4"
},
{
"binary_name": "xserver-xephyr",
"binary_version": "2:1.20.8-2ubuntu2.4"
},
{
"binary_name": "xserver-xorg-core",
"binary_version": "2:1.20.8-2ubuntu2.4"
},
{
"binary_name": "xserver-xorg-legacy",
"binary_version": "2:1.20.8-2ubuntu2.4"
},
{
"binary_name": "xvfb",
"binary_version": "2:1.20.8-2ubuntu2.4"
},
{
"binary_name": "xwayland",
"binary_version": "2:1.20.8-2ubuntu2.4"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "xorg-server",
"purl": "pkg:deb/ubuntu/xorg-server@2:1.20.8-2ubuntu2.4?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:1.20.8-2ubuntu2.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:1.20.5+git20191008-0ubuntu1",
"2:1.20.6-1ubuntu1",
"2:1.20.7-2ubuntu1",
"2:1.20.7-2ubuntu2",
"2:1.20.8-2ubuntu2",
"2:1.20.8-2ubuntu2.1",
"2:1.20.8-2ubuntu2.2",
"2:1.20.8-2ubuntu2.3"
]
}
],
"aliases": [],
"details": "Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the\nXkbSetNames function. A local attacker could possibly use this issue to\nescalate privileges.\n",
"id": "USN-4490-1",
"modified": "2026-04-22T07:36:39Z",
"published": "2020-09-08T11:29:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4490-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-14345"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "xorg-server, xorg-server-hwe-16.04, xorg-server-hwe-18.04 vulnerability",
"upstream": [
"UBUNTU-CVE-2020-14345"
]
}
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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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