Vulnerability Details 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 trigger a debug.upvaluejoin call in which the arguments have certain relationships.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.012
EPSS Ranking 78.2%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
- http://lua-users.org/lists/lua-l/2019-01/msg00039.html
- http://packetstormsecurity.com/files/151335/Lua-5.3.5-Use-After-Free.html
- https://access.redhat.com/security/cve/cve-2019-6706
- https://github.com/Lua-Project/cve-analysis/blob/a43c9ccd00274b31fa2f24c6c8f20ce36655682d/CVE-2019-6706.pdf
- https://github.com/lua/lua/commit/89aee84cbc9224f638f3b7951b306d2ee8ecb71e
- https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html
- http://lua-users.org/lists/lua-l/2019-01/msg00039.html
- http://packetstormsecurity.com/files/151335/Lua-5.3.5-Use-After-Free.html
- https://access.redhat.com/security/cve/cve-2019-6706
- https://github.com/Lua-Project/cve-analysis/blob/a43c9ccd00274b31fa2f24c6c8f20ce36655682d/CVE-2019-6706.pdf
- https://github.com/lua/lua/commit/89aee84cbc9224f638f3b7951b306d2ee8ecb71e
- https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html
Products affected by CVE-2019-6706
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cpe:2.3:a:lua:lua:5.3.5
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cpe:2.3:o:canonical:ubuntu_linux:16.04
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cpe:2.3:o:canonical:ubuntu_linux:18.04
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cpe:2.3:o:canonical:ubuntu_linux:18.10