HighFix available
xorg-server — security advisory
In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread modifies various data structures used by the input thread without acquiring a lock, aka a race condition. In particular, AttachDevice in dix/devices.c does not acquire an input lock.
- Products
- xorg-server
- Affected versions
- 2:21.1.7-3, 2:21.1.7-3+deb12u1, 2:21.1.7-3+deb12u10, 2:21.1.7-3+deb12u11, 2:21.1.7-3+deb12u12, 2:21.1.7-3+deb12u2, 2:21.1.7-3+deb12u3, 2:21.1.7-3+deb12u4, 2:21.1.7-3+deb12u5, 2:21.1.7-3+deb12u6, 2:21.1.7-3+deb12u7, 2:21.1.7-3+deb12u8, 2:21.1.7-3+deb12u9
- Fixed versions
- 2:21.1.16-1.1, 2:21.1.7-3+deb12u13
- CVEs
- CVE-2022-49737
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 15:46 UTC · Revision 1
Source evidence
In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread modifies various data structures used by the input thread without acquiring a lock, aka a race condition. In particular, AttachDevice in dix/devices.c does not acquire an input lock.
osv:DEBIAN-CVE-2022-49737
xorg-server
Fixed versions: 2:21.1.7-3+deb12u13
xorg-server
Fixed versions: 2:21.1.16-1.1
xorg-server
Fixed versions: 2:21.1.16-1.1
Complete source record
{
"id": "9fb73d370ef1e672e1aa9c8a994af8b2fe8a2674b6ace3c1b1ca680a3bd2ae37",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-49737",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-49737",
"summary": "In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread modifies various data structures used by the input thread without acquiring a lock, aka a race condition. In particular, AttachDevice in dix/devices.c does not acquire an input lock.",
"evidence": "osv:DEBIAN-CVE-2022-49737",
"products": [
{
"name": {
"value": "xorg-server",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2:21.1.7-3+deb12u13",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "2:21.1.7-3",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u10",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u11",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u12",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u2",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u3",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u4",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u5",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u6",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u7",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u8",
"evidence": "/affected/0/versions"
},
{
"value": "2:21.1.7-3+deb12u9",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "xorg-server",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2:21.1.16-1.1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xorg-server",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2:21.1.16-1.1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2022-49737",
"aliases": [
"DEBIAN-CVE-2022-49737"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2:21.1.7-3+deb12u13"
}
]
}
],
"package": {
"name": "xorg-server",
"purl": "pkg:deb/debian/xorg-server?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2:21.1.7-3",
"2:21.1.7-3+deb12u1",
"2:21.1.7-3+deb12u10",
"2:21.1.7-3+deb12u11",
"2:21.1.7-3+deb12u12",
"2:21.1.7-3+deb12u2",
"2:21.1.7-3+deb12u3",
"2:21.1.7-3+deb12u4",
"2:21.1.7-3+deb12u5",
"2:21.1.7-3+deb12u6",
"2:21.1.7-3+deb12u7",
"2:21.1.7-3+deb12u8",
"2:21.1.7-3+deb12u9"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49737.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2:21.1.16-1.1"
}
]
}
],
"package": {
"name": "xorg-server",
"purl": "pkg:deb/debian/xorg-server?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49737.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2:21.1.16-1.1"
}
]
}
],
"package": {
"name": "xorg-server",
"purl": "pkg:deb/debian/xorg-server?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49737.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T08:03:16.473302490Z",
"provider": "osv",
"upstream": [
"CVE-2022-49737"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-49737"
]
},
"related_cves": [
{
"value": "CVE-2022-49737",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 326011,
"published_at": "2025-03-16T01:15:35.543+00:00"
}