VulnerabilityModified
CVE-2021-44964
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.
MEDIUM 6.3EPSS 0.98%
Does this matter?
Lower severity and a low EPSS score (0.98%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.3 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H
- EPSS
- 0.98% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- lua/lua
- Source
- cve@mitre.org
References
- http://lua-users.org/lists/lua-l/2021-11/msg00186.htmlExploit, Mailing List, Technical Description, Vendor Advisory
- http://lua-users.org/lists/lua-l/2021-12/msg00007.htmlExploit, Mailing List, Vendor Advisory
- http://lua-users.org/lists/lua-l/2021-12/msg00015.htmlMailing List, Vendor Advisory
- http://lua-users.org/lists/lua-l/2021-12/msg00030.htmlMailing List, Vendor Advisory
- https://github.com/Lua-Project/lua-5.4.4-sandbox-escape-with-new-vulnerabilityExploit, Third Party Advisory
- http://lua-users.org/lists/lua-l/2021-11/msg00186.htmlExploit, Mailing List, Technical Description, Vendor Advisory
- http://lua-users.org/lists/lua-l/2021-12/msg00007.htmlExploit, Mailing List, Vendor Advisory
- http://lua-users.org/lists/lua-l/2021-12/msg00015.htmlMailing List, Vendor Advisory
- http://lua-users.org/lists/lua-l/2021-12/msg00030.htmlMailing List, Vendor Advisory
- https://github.com/Lua-Project/lua-5.4.4-sandbox-escape-with-new-vulnerabilityExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.