| Name | CVE-2021-44964 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| NVD severity | medium |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| lua5.4 (PTS) | bullseye | 5.4.2-2 | vulnerable |
| bookworm, sid | 5.4.4-2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| lua5.4 | source | (unstable) | (unfixed) |
http://lua-users.org/lists/lua-l/2021-11/msg00186.html
http://lua-users.org/lists/lua-l/2021-12/msg00007.html
http://lua-users.org/lists/lua-l/2021-12/msg00015.html
http://lua-users.org/lists/lua-l/2021-12/msg00030.html
https://github.com/Lua-Project/lua-5.4.4-sandbox-escape-with-new-vulnerability