What’s Vulnerable › Vulnerabilities
CVE-2020-24370
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.8% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2020-08-17 · updated 2026-06-17
- Weakness: CWE-191
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).
Affected products
- Debian Linux: 9.0
- Fedoraproject Fedora: 31, 32
- Lua: 5.2.0, 5.2.0-alpha, 5.2.0-beta, 5.2.1, 5.2.2, 5.2.3 (+11)
References
- http://lua-users.org/lists/lua-l/2020-07/msg00324.html
- https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7b
- https://lists.debian.org/debian-lts-announce/2020/09/msg00019.html
- https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6KONNG6UEI3FMEOY67NDZC32NBGBI44/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXYMCIUNGK26VHAYHGP5LPW56G2KWOHQ/
- http://lua-users.org/lists/lua-l/2020-07/msg00324.html
- https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7b
- https://lists.debian.org/debian-lts-announce/2020/09/msg00019.html
- https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6KONNG6UEI3FMEOY67NDZC32NBGBI44/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXYMCIUNGK26VHAYHGP5LPW56G2KWOHQ/
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