Vulnerability · Published Jan 11, 2022 · Assigned by mitre
CVE-2021-44647
Medium 5.5
In plain English
A medium-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 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.4%top 60.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Lua v5.4.3 and above are affected by SEGV by type confusion in funcnamefromcode function in ldebug.c which can cause a local denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | lua5.4 | 5.4.4-1 | DEBIAN-CVE-2021-44647 |
| Debian:13 | lua5.4 | 5.4.4-1 | DEBIAN-CVE-2021-44647 |
| Debian:14 | lua5.4 | 5.4.4-1 | DEBIAN-CVE-2021-44647 |
| Ubuntu:22.04:LTS | lua5.4 | 5.4.4-1 | UBUNTU-CVE-2021-44647 |