Critical
libuev — security advisory
uev (aka libuev) before 2.4.1 has a buffer overflow in epoll_wait if maxevents is a large number.
- Products
- libuev
- Affected versions
- 2.3.1-1ubuntu2, 2.4.0-1.1, 2.4.0-1.2, 2.4.1-1, 2.4.1-1build1, 2.4.1-1build2
- Fixed versions
- Not specified
- CVEs
- CVE-2022-48620
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:02 UTC · Revision 1
Source evidence
uev (aka libuev) before 2.4.1 has a buffer overflow in epoll_wait if maxevents is a large number.
osv:UBUNTU-CVE-2022-48620
libuev
Fixed versions: Not specified
libuev
Fixed versions: Not specified
libuev
Fixed versions: Not specified
libuev
Fixed versions: Not specified
libuev
Fixed versions: Not specified
Complete source record
{
"id": "8b1b98523ccd23ab20c11b6fbb8b18daf46e6602c96550f7c161f89da084cce3",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2022-48620",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2022-48620",
"summary": "uev (aka libuev) before 2.4.1 has a buffer overflow in epoll_wait if maxevents is a large number.",
"evidence": "osv:UBUNTU-CVE-2022-48620",
"products": [
{
"name": {
"value": "libuev",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.3.1-1ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "2.4.0-1.1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "libuev",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.4.0-1.1",
"evidence": "/affected/1/versions"
},
{
"value": "2.4.0-1.2",
"evidence": "/affected/1/versions"
},
{
"value": "2.4.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.4.1-1build1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "libuev",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "2.4.1-1build1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
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"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.4.1-1build2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "libuev",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.4.1-1build1",
"evidence": "/affected/4/versions"
},
{
"value": "2.4.1-1build2",
"evidence": "/affected/4/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "UBUNTU-CVE-2022-48620",
"aliases": [
"UBUNTU-CVE-2022-48620"
],
"metrics": [
{
"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": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libuev",
"purl": "pkg:deb/ubuntu/libuev?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"2.3.1-1ubuntu2",
"2.4.0-1.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-48620.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libuev3",
"binary_version": "2.4.0-1.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libuev",
"purl": "pkg:deb/ubuntu/libuev?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"2.4.0-1.1",
"2.4.0-1.2",
"2.4.1-1",
"2.4.1-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-48620.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libuev3t64",
"binary_version": "2.4.1-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
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}
],
"package": {
"name": "libuev",
"purl": "pkg:deb/ubuntu/libuev?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"2.4.1-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-48620.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libuev3t64",
"binary_version": "2.4.1-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
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}
],
"package": {
"name": "libuev",
"purl": "pkg:deb/ubuntu/libuev?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"2.4.1-1build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-48620.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libuev3t64",
"binary_version": "2.4.1-1build2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libuev",
"purl": "pkg:deb/ubuntu/libuev?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"2.4.1-1build1",
"2.4.1-1build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-48620.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libuev3t64",
"binary_version": "2.4.1-1build2"
}
]
}
}
],
"modified": "2026-10-17T12:56:23.061744387Z",
"provider": "osv",
"upstream": [
"CVE-2022-48620"
],
"references": [
"https://ubuntu.com/security/CVE-2022-48620",
"https://github.com/troglobit/libuev/issues/27",
"https://github.com/troglobit/libuev/commit/2d9f1c9ce655cc38511aeeb6e95ac30914f7aec9",
"https://github.com/troglobit/libuev/compare/v2.4.0...v2.4.1",
"https://www.cve.org/CVERecord?id=CVE-2022-48620"
]
},
"related_cves": [
{
"value": "CVE-2022-48620",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355524,
"published_at": "2024-01-12T04:15:00+00:00"
}