CVE-2020-15889

Summary

Lua 5.4.0 has a getobjname heap-based buffer over-read because youngcollection in lgc.c uses markold for an insufficient number of list members.

Impact & exploitability

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: https://github.com/lua/lua/commit/127e7a6c8942b362aa3c6627f44d660a4fb75312 ↗

Additional information

• NVD record
• https://github.com/lua/lua/commit/127e7a6c8942b362aa3c6627f44d660a4fb75312Patch
• http://lua-users.org/lists/lua-l/2020-12/msg00157.htmlAdvisory
• http://lua-users.org/lists/lua-l/2020-07/msg00078.htmlAdvisory