UBUNTU-CVE-2021-44647

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Source
https://ubuntu.com/security/CVE-2021-44647
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-44647.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-44647
Upstream
Withdrawn
2025-07-18T16:47:04Z
Published
2022-01-11T13:15:00Z
Modified
2025-07-16T08:15:58.760500Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Lua v5.4.3 and above are affected by SEGV by type confusion in funcnamefromcode function in ldebug.c which can cause a local denial of service.

References

Affected packages

Ubuntu:22.04:LTS / lua5.4

Package

Name
lua5.4
Purl
pkg:deb/ubuntu/lua5.4@5.4.4-1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.4.4-1

Affected versions

5.*

5.4.2-2
5.4.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblua5.4-0",
            "binary_version": "5.4.4-1"
        },
        {
            "binary_name": "liblua5.4-0-dbg",
            "binary_version": "5.4.4-1"
        },
        {
            "binary_name": "liblua5.4-dev",
            "binary_version": "5.4.4-1"
        },
        {
            "binary_name": "lua5.4",
            "binary_version": "5.4.4-1"
        }
    ],
    "availability": "No subscription required"
}