USN-6587-1 (UBUNTU-CVE-2023-6816)
Vulnerability from osv_ubuntu – Published: 2024-01-16 15:20 – Updated: 2026-04-27 14:11 – Source websiteJan-Niklas Sohn discovered that the X.Org X Server incorrectly handled memory when processing the DeviceFocusEvent and ProcXIQueryPointer APIs. An attacker could possibly use this issue to cause the X Server to crash, obtain sensitive information, or execute arbitrary code. (CVE-2023-6816)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled reattaching to a different master device. An attacker could use this issue to cause the X Server to crash, leading to a denial of service, or possibly execute arbitrary code. (CVE-2024-0229)
Olivier Fourdan and Donn Seeley discovered that the X.Org X Server incorrectly labeled GLX PBuffers when used with SELinux. An attacker could use this issue to cause the X Server to crash, leading to a denial of service. (CVE-2024-0408)
Olivier Fourdan discovered that the X.Org X Server incorrectly handled the curser code when used with SELinux. An attacker could use this issue to cause the X Server to crash, leading to a denial of service. (CVE-2024-0409)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled memory when processing the XISendDeviceHierarchyEvent API. An attacker could possibly use this issue to cause the X Server to crash, or execute arbitrary code. (CVE-2024-21885)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled devices being disabled. An attacker could possibly use this issue to cause the X Server to crash, or execute arbitrary code. (CVE-2024-21886)
{
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{
"id": "CVE-2024-21886",
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{
"binary_name": "xwayland",
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}
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},
"package": {
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"name": "xorg-server",
"purl": "pkg:deb/ubuntu/xorg-server@2:1.20.13-1ubuntu1~20.04.14?arch=source\u0026distro=focal"
},
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"2:1.20.9-2ubuntu1.2~20.04.1",
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"2:1.20.11-1ubuntu1~20.04.2",
"2:1.20.13-1ubuntu1~20.04.2",
"2:1.20.13-1ubuntu1~20.04.3",
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"2:1.20.13-1ubuntu1~20.04.9",
"2:1.20.13-1ubuntu1~20.04.12"
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},
{
"database_specific": {
"cves_map": {
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{
"id": "CVE-2023-6816",
"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": "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-2024-0229",
"severity": [
{
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"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
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{
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"type": "Ubuntu"
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{
"id": "CVE-2024-0408",
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{
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"id": "CVE-2024-21885",
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"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2024-21886",
"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:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
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"binary_name": "xnest",
"binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
},
{
"binary_name": "xorg-server-source",
"binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
},
{
"binary_name": "xserver-common",
"binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
},
{
"binary_name": "xserver-xephyr",
"binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
},
{
"binary_name": "xserver-xorg-core",
"binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
},
{
"binary_name": "xserver-xorg-legacy",
"binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
},
{
"binary_name": "xvfb",
"binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
}
]
},
"package": {
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"name": "xorg-server",
"purl": "pkg:deb/ubuntu/xorg-server@2:21.1.4-2ubuntu1.7~22.04.7?arch=source\u0026distro=jammy"
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"2:1.20.13-1ubuntu2",
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{
"id": "CVE-2023-6816",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
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{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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{
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"severity": [
{
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"type": "CVSS_V3"
},
{
"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-2024-0408",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2024-0409",
"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": "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-2024-21885",
"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-2024-21886",
"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:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "xwayland",
"binary_version": "2:22.1.1-1ubuntu0.10"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "xwayland",
"purl": "pkg:deb/ubuntu/xwayland@2:22.1.1-1ubuntu0.10?arch=source\u0026distro=jammy"
},
"ranges": [
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"2:22.1.1-1ubuntu0.4",
"2:22.1.1-1ubuntu0.5",
"2:22.1.1-1ubuntu0.6",
"2:22.1.1-1ubuntu0.7",
"2:22.1.1-1ubuntu0.9"
]
}
],
"aliases": [],
"details": "Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\nmemory when processing the DeviceFocusEvent and ProcXIQueryPointer APIs. An\nattacker could possibly use this issue to cause the X Server to crash,\nobtain sensitive information, or execute arbitrary code. (CVE-2023-6816)\n\nJan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\nreattaching to a different master device. An attacker could use this issue\nto cause the X Server to crash, leading to a denial of service, or possibly\nexecute arbitrary code. (CVE-2024-0229)\n\nOlivier Fourdan and Donn Seeley discovered that the X.Org X Server\nincorrectly labeled GLX PBuffers when used with SELinux. An attacker could\nuse this issue to cause the X Server to crash, leading to a denial of\nservice. (CVE-2024-0408)\n\nOlivier Fourdan discovered that the X.Org X Server incorrectly handled\nthe curser code when used with SELinux. An attacker could use this issue to\ncause the X Server to crash, leading to a denial of service.\n(CVE-2024-0409)\n\nJan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\nmemory when processing the XISendDeviceHierarchyEvent API. An attacker\ncould possibly use this issue to cause the X Server to crash, or execute\narbitrary code. (CVE-2024-21885)\n\nJan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\ndevices being disabled. An attacker could possibly use this issue to cause\nthe X Server to crash, or execute arbitrary code. (CVE-2024-21886)\n",
"id": "USN-6587-1",
"modified": "2026-04-27T14:11:32Z",
"published": "2024-01-16T15:20:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6587-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-6816"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2024-0229"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2024-0408"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2024-0409"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2024-21885"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2024-21886"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "xorg-server, xwayland vulnerabilities",
"upstream": [
"UBUNTU-CVE-2023-6816",
"UBUNTU-CVE-2024-0229",
"UBUNTU-CVE-2024-0408",
"UBUNTU-CVE-2024-0409",
"UBUNTU-CVE-2024-21885",
"UBUNTU-CVE-2024-21886"
]
}
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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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