Skip to content
Fencer Intel
high 7.5

CVE-2020-24372 json

LuaJIT through 2.1.0-beta3 has an out-of-bounds read in lj_err_run in lj_err.c.

published 6y ago modified 4mo ago also EUVD-2020-17104

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

LuaJIT through 2.1.0-beta3 has an out-of-bounds read in lj_err_run in lj_err.c.

Patch / fix

  • luajit Debian 14, Debian 13, Debian 12 2.1.0~beta3+git20210112+dfsg-2

debian advisories DEBIAN-CVE-2020-24372

Is CVE-2020-24372 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-24372 updated cvss 7.5

luajit: out-of-bounds read in lj_err_run function in lj_err.c

  • Red Hat OpenShift Service Mesh 1 servicemesh-proxy
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.54% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/LuaJIT/LuaJIT/issues/603 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.