Vulnerability · Published Jul 21, 2020 · Assigned by mitre
CVE-2020-15889
Critical 9.8
In plain English
A critical-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 2.2% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)2.2%top 17.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Lua 5.4.0 has a getobjname heap-based buffer over-read because youngcollection in lgc.c uses markold for an insufficient number of list members.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | lua5.4 | 5.4.0-2 | DEBIAN-CVE-2020-15889 |
| Debian:13 | lua5.4 | 5.4.0-2 | DEBIAN-CVE-2020-15889 |
| Debian:14 | lua5.4 | 5.4.0-2 | DEBIAN-CVE-2020-15889 |
Affected products (as reported)
References
- http://lua-users.org/lists/lua-l/2020-07/msg00078.html x_refsource_MISC
- https://github.com/lua/lua/commit/127e7a6c8942b362aa3c6627f44d660a4fb75312 x_refsource_MISC
- http://lua-users.org/lists/lua-l/2020-12/msg00157.html x_refsource_MISC