CVE-2021-45985
First published: Mon Apr 10 2023(Updated: )
In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Lua Lua | =5.4.3 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-45985?
CVE-2021-45985 is a vulnerability in Lua 5.4.3 that causes an erroneous finalizer to be called during a tail call, leading to a heap-based buffer over-read.
What is the severity of CVE-2021-45985?
The severity of CVE-2021-45985 is high, with a severity value of 7.5.
How does CVE-2021-45985 impact Lua 5.4.3?
CVE-2021-45985 can cause a heap-based buffer over-read in Lua 5.4.3 due to an erroneous finalizer called during a tail call.
How can I fix CVE-2021-45985?
To fix CVE-2021-45985, update Lua to version 5.4.4 or later, which includes a patch for the vulnerability.
Where can I find more information about CVE-2021-45985?
You can find more information about CVE-2021-45985 on the Lua mailing list, Lua GitHub repository, and Lua bug tracker.
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