CVE-2020-24342

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2020-24342
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24342.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-24342
Aliases
Downstream
Related
Published
2020-08-13T19:15:13.613Z
Modified
2026-07-08T19:02:31.673582Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Lua through 5.4.0 allows a stack redzone cross in luaOpushvfstring because a protection mechanism wrongly calls luaDcallnoyield twice in a row.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "CPE_STRING",
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
                {
                    "introduced": "33"
                },
                {
                    "last_affected": "33"
                }
            ],
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / github.com/lua/lua

Affected ranges

Type
GIT
Repo
https://github.com/lua/lua
Events
Introduced
c33b1728aeb7dfeec4013562660e07d32697aa6b
Last affected
c33b1728aeb7dfeec4013562660e07d32697aa6b
Fixed
34affe7a63fc5d842580a9f23616d057e17dfe27
Database specific 
{
    "cpe": "cpe:2.3:a:lua:lua:5.4.0:*:*:*:*:*:*:*",
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "5.4.0"
        },
        {
            "last_affected": "5.4.0"
        }
    ]
}

Affected versions

5.*
5.4.0
v5.*
v5.4.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24342.json"
vanir_signatures_modified 
"2026-07-08T19:02:31Z"
vanir_signatures 
[
    {
        "signature_version": "v1",
        "source": "https://github.com/lua/lua/commit/34affe7a63fc5d842580a9f23616d057e17dfe27",
        "id": "CVE-2020-24342-46e61d2d",
        "digest": {
            "length": 203.0,
            "function_hash": "19393622418567517198781995424538435971"
        },
        "target": {
            "function": "luaD_callnoyield",
            "file": "ldo.c"
        },
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "source": "https://github.com/lua/lua/commit/34affe7a63fc5d842580a9f23616d057e17dfe27",
        "id": "CVE-2020-24342-e3b3e09e",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "307434724169721203115088959011068448315",
                "142710705972916715821753310510346050538",
                "132059686558750829782112284199427550874",
                "289888402931218646482748640243965616128",
                "244127718289203141723121943598927242891",
                "17269890457240028859642241902384334321",
                "54095854288253291227407020601160490895"
            ]
        },
        "target": {
            "file": "ldo.c"
        },
        "deprecated": false,
        "signature_type": "Line"
    }
]