CVE-2021-43519
First published: Tue Nov 09 2021(Updated: )
Stack overflow in lua_resume of ldo.c in Lua Interpreter 5.1.0~5.4.4 allows attackers to perform a Denial of Service via a crafted script file.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Lua Lua | >=5.1.0<5.3.5 | |
| Lua Lua | >=5.4.0<5.4.4 | |
| Fedoraproject Fedora | =35 |
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Reference Links
- http://lua-users.org/lists/lua-l/2021-10/msg00123.html
- http://lua-users.org/lists/lua-l/2021-11/msg00015.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C7XHFYHGSZKL53VCLSJSAJ6VMFGAIXKO/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C7XHFYHGSZKL53VCLSJSAJ6VMFGAIXKO/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/
Frequently Asked Questions
What is CVE-2021-43519?
CVE-2021-43519 is a vulnerability in the Lua Interpreter that allows attackers to perform a Denial of Service through a crafted script file.
What software is affected by CVE-2021-43519?
The Lua Interpreter versions 5.1.0 to 5.3.5, and 5.4.0 to 5.4.4, as well as Fedora 35, are affected by CVE-2021-43519.
What is the severity of CVE-2021-43519?
CVE-2021-43519 has a severity level of 5.5, which is classified as medium.
How can attackers exploit CVE-2021-43519?
Attackers can exploit CVE-2021-43519 by utilizing a crafted script file to cause a stack overflow in the lua_resume function, leading to a Denial of Service.
Are there any references for CVE-2021-43519?
Yes, you can find more information about CVE-2021-43519 at the following references: http://lua-users.org/lists/lua-l/2021-10/msg00123.html, http://lua-users.org/lists/lua-l/2021-11/msg00015.html, https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C7XHFYHGSZKL53VCLSJSAJ6VMFGAIXKO/
- collector/nvd-index
- agent/references
- agent/weakness
- agent/severity
- agent/author
- agent/event
- agent/type
- agent/description
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/remedy
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/lua
- canonical/lua lua
- version/lua lua/5.1.0
- version/lua lua/5.4.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/35