CVE-2019-19391
CRITICAL EPSS 67.5%
Published Nov 29, 20196y ago · Modified Jun 17, 20262w ago
9.1 CVSS 3.1
Published Nov 29, 2019 6y ago
Last Modified Jun 17, 2026 2w ago
Description
In LuaJIT through 2.0.5, as used in Moonjit before 2.1.2 and other products, debug.getinfo has a type confusion issue that leads to arbitrary memory write or read operations, because certain cases involving valid stack levels and > options are mishandled. NOTE: The LuaJIT project owner states that the debug libary is unsafe by definition and that this is not a vulnerability. When LuaJIT was originally developed, the expectation was that the entire debug library had no security guarantees and thus it made no sense to assign CVEs. However, not all users of later LuaJIT derivatives share this perspective
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None
Threat Intelligence
EPSS Exploit Probability
67.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-843
Affected Products 2
| Vendor | Product | Version | Range |
|---|---|---|---|
| luajit | luajit | * | ≤2.0.5 |
| moonjit_project | moonjit | * | <2.1.2 |
References 2
- github.com https://github.com/LuaJIT/LuaJIT/pull/526
- lists.debian.org https://lists.debian.org/debian-lts-announce/2025/08/msg00022.html
Remediation
- github.com https://github.com/LuaJIT/LuaJIT/pull/526