Description
Lua through 5.4.0 allows a stack redzone cross in luaO_pushvfstring because a protection mechanism wrongly calls luaD_callnoyield twice in a row.
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 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | lua55 | 5.5.0~beta1-1.1 | openSUSE-SU-2025:15401-1 |
Advisories 2
- openSUSE-SU-2025:15401-1 liblua5_5-5-5.5.0~beta1-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SCA-2025-0006 Vulnerability affecting picoScan and multiScan SICK PSIRT · Apr 28, 2025