CVE-2020-24370
MEDIUMCVSS 5.3/10EPSS 3.86%
Last modified
CVE-2020-24370 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).. EPSS estimates a 3.86% chance of exploitation in the next 30 days.
Description
ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Lua | Lua | 5.2.0 |
| Lua | Lua | 5.2.1 |
| Lua | Lua | 5.2.2 |
| Lua | Lua | 5.2.3 |
| Lua | Lua | 5.3.0 |
| Lua | Lua | 5.3.1 |
| Lua | Lua | 5.3.2 |
| Lua | Lua | 5.3.3 |
| Lua | Lua | 5.3.4 |
| Lua | Lua | 5.3.5 |
| Lua | Lua | 5.4.0 |
| Fedoraproject | Fedora | 31 |
| Fedoraproject | Fedora | 32 |
| Debian | Debian Linux | 9.0 |
References
- http://lua-users.org/lists/lua-l/2020-07/msg00324.htmlExploit, Mailing List, Vendor Advisory
- https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7bPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00019.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00031.htmlThird Party Advisory
- http://lua-users.org/lists/lua-l/2020-07/msg00324.htmlExploit, Mailing List, Vendor Advisory
- https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7bPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00019.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00031.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2020-24370?
ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).
How severe is CVE-2020-24370?
CVE-2020-24370 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 3.86% probability of exploitation in the next 30 days.
How do I fix CVE-2020-24370?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2020-24370?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST