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CVE-2019-6706
Lua 5.3.5 has a use-after-free in lua_upvaluejoin in lapi.c. For example, a crash outcome might be achieved by an attacker who is able to…
High7.5EPSS 17.4%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Lua 5.3.5 has a use-after-free in lua_upvaluejoin in lapi.c. For example, a crash outcome might be achieved by an attacker who is able to trigger a debug.upvaluejoin call in which the arguments have certain relationships.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 17.4% · top 2.9% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (6)
- http://packetstormsecurity.com/files/151335/Lua-5.3.5-Use-After-Free.html (opens in a new tab)x_transferred
- https://github.com/Lua-Project/cve-analysis/blob/a43c9ccd00274b31fa2f24c6c8f20ce36655682d/CVE-2019-6706.pdf (opens in a new tab)x_transferred
- https://github.com/lua/lua/commit/89aee84cbc9224f638f3b7951b306d2ee8ecb71e (opens in a new tab)x_transferred
- http://lua-users.org/lists/lua-l/2019-01/msg00039.html (opens in a new tab)x_transferred
- https://access.redhat.com/security/cve/cve-2019-6706 (opens in a new tab)x_transferred
- [debian-lts-announce] 20230622 [SECURITY] [DLA 3469-1] lua5.3 security update (opens in a new tab)mailing-listx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-6706)Record last updated .