ubuntu-cve-2022-28805
Vulnerability from osv_ubuntu
Published
2022-04-08 06:15
Modified
2026-04-22 07:41
Summary
Details
singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.
Severity
9.1 (Critical)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "liblua5.4-0",
"binary_version": "5.4.4-1ubuntu0.1~esm1"
},
{
"binary_name": "lua5.4",
"binary_version": "5.4.4-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "lua5.4",
"purl": "pkg:deb/ubuntu/lua5.4@5.4.4-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.4.4-1ubuntu0.1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.4.2-2",
"5.4.3-1",
"5.4.4-1"
]
}
],
"aliases": [],
"details": "singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.",
"id": "UBUNTU-CVE-2022-28805",
"modified": "2026-04-22T07:41:34Z",
"published": "2022-04-08T06:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2022-28805"
},
{
"type": "REPORT",
"url": "https://lua-users.org/lists/lua-l/2022-02/msg00001.html"
},
{
"type": "REPORT",
"url": "https://lua-users.org/lists/lua-l/2022-02/msg00070.html"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-28805"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6916-1"
}
],
"related": [
"USN-6916-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2022-28805"
]
}
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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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