CVE catalog
CVE-2021-44964
lua5.4: CVE-2021-44964
- Severity
- High · CVSS 8.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.98% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | lua5.4 | sid | 5.4.9-1 | fixed |
| Debian | lua5.4 | forky | 5.4.9-1 | fixed |
| Debian | lua5.4 | trixie | 5.4.7-1 | fixed |
| Debian | lua5.4 | bookworm | 5.4.4-3+deb12u1 | fixed |
| Ubuntu | lua5.2 | 14.04 | 5.2.2-1 | vulnerable |
| Ubuntu | lua5.2 | 14.04 | 5.2.2-2 | vulnerable |
| Ubuntu | lua5.2 | 14.04 | 5.2.2-3 | vulnerable |
| Ubuntu | lua5.2 | 14.04 | 5.2.3-1 | vulnerable |
| Ubuntu | lua5.2 | 16.04 | 5.2.4-1 | vulnerable |
| Ubuntu | lua5.2 | 16.04 | 5.2.4-1ubuntu1 | vulnerable |
| Ubuntu | lua5.3 | 16.04 | 5.3.1-1 | vulnerable |
| Ubuntu | lua5.3 | 16.04 | 5.3.1-1ubuntu2 | vulnerable |
| Ubuntu | lua5.3 | 16.04 | 5.3.1-1ubuntu2.1 | vulnerable |
| Ubuntu | lua50 | 16.04 | 5.0.3-7 | vulnerable |
| Ubuntu | lua50 | 18.04 | 5.0.3-8 | vulnerable |
| Ubuntu | lua50 | 20.04 | 5.0.3-8build1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | lua5.4 | source | sid | 5.4.4-1 | not yet assigned | Not reported | Not reported |
| Debian | lua5.4 | source | forky | 5.4.4-1 | not yet assigned | Not reported | Not reported |
| Debian | lua5.4 | source | trixie | 5.4.4-1 | not yet assigned | Not reported | Not reported |
| Debian | lua5.4 | source | bookworm | 5.4.4-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [liblua5.4-0]Fixed
Source package: [lua5.4]
Details (2)
5.4.4-3+deb12u1· amd64 · bookwormFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
5.4.4-3+deb12u1· arm64 · bookwormFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
- [liblua5.4-0-dbg]Fixed
Source package: [lua5.4]
Details (2)
5.4.4-3+deb12u1· amd64 · bookwormFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
5.4.4-3+deb12u1· arm64 · bookwormFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
- [liblua5.4-dev]Fixed
Source package: [lua5.4]
Details (2)
5.4.4-3+deb12u1· amd64 · bookwormFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
5.4.4-3+deb12u1· arm64 · bookwormFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
- [lua5.4]Fixed
Details (2)
5.4.4-3+deb12u1· amd64 · bookwormFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
5.4.4-3+deb12u1· arm64 · bookwormFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
[Debian 13 (Trixie)]
- [liblua5.4-0]Fixed
Source package: [lua5.4]
Details (2)
5.4.7-1+b2· amd64 · trixieFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · 13
5.4.7-1+b2· arm64 · trixieFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · 13
- [liblua5.4-dev]Fixed
Source package: [lua5.4]
Details (2)
5.4.7-1+b2· amd64 · trixieFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · 13
5.4.7-1+b2· arm64 · trixieFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · 13
- [lua5.4]Fixed
Source package: [lua5.4]
Details (2)
5.4.7-1+b2· amd64 · trixieFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · 13
5.4.7-1+b2· arm64 · trixieFixed · Fixed:
5.4.4-1dsa · lua5.4 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2023_0957.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2021-44964]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2021-44964]
- [https://security-tracker.debian.org/tracker/CVE-2021-44964]
- [https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-44964.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-0522.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]