Description
Use after free in garbage collector and finalizer of lgc.c in Lua interpreter 5.4.0~5.4.3 allows attackers to perform Sandbox Escape via a crafted script file.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | lua5.4 | 5.4.4-1 | — |
| Debian 13 | lua5.4 | 5.4.4-1 | — |
| Debian 12 | lua5.4 | 5.4.4-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | lua5.2 +1 | No fix yet | — |
| Ubuntu 14.04 LTS | lua5.2 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | lua +2 | 5.4.4-2.el9_1 | RHSA-2023:0957 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.0 EUS | lua +2 | 5.4.4-1.el9_0.1 | RHSA-2023:1211 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | lua +2 | 5.4.4-2.el9_1 | ALSA-2023:0957 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | lua | 5.4.4-2.el9_1 | RLSA-2023:0957 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | ntopng | 5.2.1-6 | — |
| Azure Linux 2 (CBL-Mariner) | lua | 5.4.4-1 | — |
| Azure Linux 2 (CBL-Mariner) | memcached | 1.6.22-2 | — |
| Azure Linux 2 (CBL-Mariner) | ntopng | 5.2.1-3 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | lua +2 | 5.4.4-2.el9_1 | ELSA-2023-0957 |
Advisories 7
- ALSA-2023:0957 Moderate: lua security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2023:1211 Red Hat Security Advisory: lua security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2023:0957 Red Hat Security Advisory: lua security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RLSA-2023:0957 Moderate: lua security update Rocky Linux Security Advisories · Feb 5, 2026
- WID-SEC-2023-1542 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 18, 2025
- WID-SEC-2023-0522 Red Hat Enterprise Linux (lua): Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 4, 2025
- ELSA-2023-0957 Moderate: lua security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Feb 28, 2023