ubuntu-cve-2024-31083
Vulnerability from osv_ubuntu
Published
2024-03-04 00:00
Modified
2026-04-22 07:48
Summary
Details
A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.
Severity
7.8 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
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"2:21.1.4-2ubuntu1.7~22.04.5",
"2:21.1.4-2ubuntu1.7~22.04.7",
"2:21.1.4-2ubuntu1.7~22.04.8",
"2:21.1.4-2ubuntu1.7~22.04.9"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "xwayland",
"binary_version": "2:22.1.1-1ubuntu0.13"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "xwayland",
"purl": "pkg:deb/ubuntu/xwayland@2:22.1.1-1ubuntu0.13?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:22.1.1-1ubuntu0.13"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:21.1.2-0ubuntu1",
"2:21.1.3-1",
"2:21.1.3-1ubuntu1",
"2:21.1.4-1",
"2:22.1.0-1",
"2:22.1.1-1",
"2:22.1.1-1ubuntu0.1",
"2:22.1.1-1ubuntu0.2",
"2:22.1.1-1ubuntu0.3",
"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",
"2:22.1.1-1ubuntu0.10",
"2:22.1.1-1ubuntu0.11",
"2:22.1.1-1ubuntu0.12"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "xnest",
"binary_version": "2:21.1.12-1ubuntu1"
},
{
"binary_name": "xorg-server-source",
"binary_version": "2:21.1.12-1ubuntu1"
},
{
"binary_name": "xserver-common",
"binary_version": "2:21.1.12-1ubuntu1"
},
{
"binary_name": "xserver-xephyr",
"binary_version": "2:21.1.12-1ubuntu1"
},
{
"binary_name": "xserver-xorg-core",
"binary_version": "2:21.1.12-1ubuntu1"
},
{
"binary_name": "xserver-xorg-legacy",
"binary_version": "2:21.1.12-1ubuntu1"
},
{
"binary_name": "xvfb",
"binary_version": "2:21.1.12-1ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "xorg-server",
"purl": "pkg:deb/ubuntu/xorg-server@2:21.1.12-1ubuntu1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:21.1.12-1ubuntu1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:21.1.7-3ubuntu2",
"2:21.1.7-3ubuntu2.1",
"2:21.1.10-1ubuntu1",
"2:21.1.11-2ubuntu1"
]
}
],
"aliases": [],
"details": "A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.",
"id": "UBUNTU-CVE-2024-31083",
"modified": "2026-04-22T07:48:47Z",
"published": "2024-03-04T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2024-31083"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6721-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6721-2"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-31083"
}
],
"related": [
"USN-6721-1",
"USN-6721-2"
],
"schema_version": "1.7.0",
"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"
}
],
"upstream": [
"CVE-2024-31083"
]
}
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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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