Vulnerability · Published Aug 13, 2020 · Assigned by mitre
CVE-2020-24342
High 7.8
In plain English
A high-severity security flaw in the lua5.4 package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.8High
Exploit odds (30 days)1.1%top 34.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Lua through 5.4.0 allows a stack redzone cross in luaO_pushvfstring because a protection mechanism wrongly calls luaD_callnoyield twice in a row.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | lua5.4 | 5.4.1-1 | DEBIAN-CVE-2020-24342 |
| Debian:13 | lua5.4 | 5.4.1-1 | DEBIAN-CVE-2020-24342 |
| Debian:14 | lua5.4 | 5.4.1-1 | DEBIAN-CVE-2020-24342 |
Affected products (as reported)
References
- http://lua-users.org/lists/lua-l/2020-07/msg00052.html x_refsource_MISC
- https://github.com/lua/lua/commit/34affe7a63fc5d842580a9f23616d057e17dfe27 x_refsource_MISC
- FEDORA-2020-38e35de8aa vendor-advisory, x_refsource_FEDORA