CVE-2019-6706

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

• Lua 5.3.5 - 'debug.upvaluejoin' Use After Free2019-01-25 · dos · multiple

Impact

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.

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• 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