What is CVE-2020-24371?

CVE-2020-24371 is a medium-severity vulnerability in Lua, classified under Release of Invalid Pointer or Reference. CVSS score: 5.3/10. Published 2020-08-17.

How severe is CVE-2020-24371?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2020-24371 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Lua

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 involving collectgarbage.

EPSS: 0.018 (76.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Lua — versions 5.4.0
N/a — versions n/a

Weakness classification (CWE)

CWE-763 — Release of Invalid Pointer or Reference

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-24371

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Exploit, Patch, x_refsource_MISC, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2020-24371?: CVE-2020-24371 is a medium-severity vulnerability in Lua, classified under Release of Invalid Pointer or Reference. CVSS score: 5.3/10. Published 2020-08-17.
How severe is CVE-2020-24371?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2020-24371 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.