VDB
CVE-2019-6706
CVE-2019-6706
PUBLISHED
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.
EPSS 0.90% · 76.1th percentile
Risk Scores
EPSS Score
0.90%
76.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | lua5.3 | 0, 5.3.3-1 |
| Ubuntu:16.04:LTS | lua5.3 | 0, 5.3.1-1, 5.3.1-1ubuntu2 |
Exploit Intelligence
- http://packetstormsecurity.com/files/151335/Lua-5.3.5-Use-After-Free.html (nist-nvd)
- https://github.com/Lua-Project/cve-analysis/blob/a43c9ccd00274b31fa2f24c6c8f20ce36655682d/CVE-2019-6706.pdf (nist-nvd)
- https://github.com/lua/lua/commit/89aee84cbc9224f638f3b7951b306d2ee8ecb71e (circl)
- http://lua-users.org/lists/lua-l/2019-01/msg00039.html (circl)
- https://access.redhat.com/security/cve/cve-2019-6706 (circl)
- [debian-lts-announce] 20230622 [SECURITY] [DLA 3469-1] lua5.3 security update (circl)
- Lua 5.3.5 - debug.upvaluejoin Use After Free Exploit (0day-today)
- Lua 5.3.5 - debug.upvaluejoin Use After Free Exploit (0day-today)
Timeline
- Jan 23, 2019 CVE Published
- Jan 25, 2019 PoC Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
- Jan 8, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2019-6706 third-party-advisory
- http://lua.2524044.n2.nabble.com/Bug-Report-Use-after-free-in-debug-upvaluejoin-tc7685506.html third-party-advisory
- http://lua.2524044.n2.nabble.com/CVE-2019-6706-use-after-free-in-lua-upvaluejoin-function-tc7685575.html third-party-advisory
- https://ubuntu.com/security/notices/USN-3941-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-6706 third-party-advisory