Description
lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, leading to a memory access violation involving collectgarbage.
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 | 5.4.1-1 | — |
| Debian 13 | lua5.4 | 5.4.1-1 | — |
| Debian 12 | lua5.4 | 5.4.1-1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | lua53 | 5.3.6-3.6.1 | SUSE-SU-2021:2196-1 |
| SLES 15 SP2 | lua53 | 5.3.6-3.6.1 | SUSE-SU-2021:2196-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.0 | lua53 | 5.3.6-3.6.1 | SUSE-SU-2021:2196-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | lua55 | 5.5.0~beta1-1.1 | openSUSE-SU-2025:15401-1 |
| openSUSE Leap 15.3 | lua53 | 5.3.6-3.6.1 | openSUSE-SU-2021:2196-1 |
| openSUSE Leap 15.2 | lua53 | 5.3.6-lp152.5.3.1 | openSUSE-SU-2021:0962-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | ceph | 18.2.2-3 | — |
Advisories 5
- openSUSE-SU-2025:15401-1 liblua5_5-5-5.5.0~beta1-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2021:0962-1 Security update for lua53 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:2196-1 Security update for lua53 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2196-1 Security update for lua53 SUSE / openSUSE Security Updates · Feb 4, 2026
- SCA-2025-0006 Vulnerability affecting picoScan and multiScan SICK PSIRT · Apr 28, 2025