CVE-2019-19391
Last modified
CVE-2019-19391 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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. EPSS estimates a 1.33% chance of exploitation in the next 30 days.
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
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Luajit | Luajit | <= 2.0.5 |
| Moonjit Project | Moonjit | < 2.1.2 |
References
- https://github.com/LuaJIT/LuaJIT/pull/526Issue Tracking, Patch, Third Party Advisory
- https://github.com/LuaJIT/LuaJIT/pull/526Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-19391?
How severe is CVE-2019-19391?
How do I fix CVE-2019-19391?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2019
- CVE-2019-19386A cross-site scripting (XSS) vulnerability in app/voicemail_…6.1
- CVE-2019-19387A cross-site scripting (XSS) vulnerability in app/fifo_list/…6.1
- CVE-2019-19388A cross-site scripting (XSS) vulnerability in app/dialplans/…6.1
- CVE-2019-19389JetBrains Ktor framework before version 1.2.6 was vulnerable…5.4
- CVE-2019-1939A vulnerability in the Cisco Webex Teams client for Windows …8.8
- CVE-2019-19390The Search parameter of the Software Catalogue section of Ma…5.4
- CVE-2019-19392The forDNN.UsersExportImport module before 1.2.0 for DNN (fo…9.8
- CVE-2019-19393The Web application on Rittal CMC PU III 7030.000 V3.00 V3.1…6.1
- CVE-2019-19394Northern.tech CFEngine Enterprise before 3.10.7, 3.11.x and …6.1
- CVE-2019-19396illumos, as used in OmniOS Community Edition before r151030y…7.5
- CVE-2019-19397There is a weak algorithm vulnerability in some Huawei produ…7.5
- CVE-2019-19398M5 lite 10 with versions of 8.0.0.182(C00) have an insuffici…9.8
Are you affected by CVE-2019-19391?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST