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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-24364MineTime through 1.8.5 allows arbitrary command execution vi…8.8
- CVE-2020-24365An issue was discovered on Gemtek WRTM-127ACN 01.01.02.141 a…8.8
- CVE-2020-24366Sensitive information could be disclosed in the JetBrains Yo…3.3
- CVE-2020-24367Incorrect file permissions in BlueStacks 4 through 4.230 on …7.8
- CVE-2020-24368Icinga Icinga Web2 2.0.0 through 2.6.4, 2.7.4 and 2.8.2 has …7.5
- CVE-2020-24369ldebug.c in Lua 5.4.0 attempts to access debug information v…7.5
- CVE-2020-24371lgc.c in Lua 5.4.0 mishandles the interaction between barrie…5.3
- CVE-2020-24372LuaJIT through 2.1.0-beta3 has an out-of-bounds read in lj_e…7.5
- CVE-2020-24373A CSRF vulnerability in the UPnP MediaServer implementation …8.8
- CVE-2020-24374A DNS rebinding vulnerability in Freebox v5 before 1.5.29.9.6
- CVE-2020-24375A DNS rebinding vulnerability in the UPnP MediaServer implem…6.5
- CVE-2020-24376A DNS rebinding vulnerability in the UPnP IGD implementation…9.6
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