Home/CVE/lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, leading to a memory access violation
CVE

CVE-2020-24371

lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, leading to a memory access violation

lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, leading to a memory access violation involving collectgarbage.

MEDIUM · CVSS 5.3 EPSS 0.0046
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-763Release of Invalid Pointer or Reference
▤

Affected Products & Versions

1
luaall versions
⚠

Public Exploits & PoCs

1
pocwww.lua.org · bugs.html#5.4.0-10www.lua.org
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Aug 2020 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
⚑

Vendor Advisories

7
msrcCVE-2020-24371
suse-csafopenSUSE-SU-2025:15401-1
suse-csafopenSUSE-SU-2024:11028-1
suse-csafopenSUSE-SU-2024:11029-1
suse-csafopenSUSE-SU-2021:2196-1
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/lua/lua/commit/a6da1472c0c5e05ff249325f979531ad51533110PatchThird Party Advisory
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