An issue has been found in luajit, a just in time compiler for Lua.

An out-of-bounds read could happen because __gc handler frame traversal is mishandled.

For Debian 9 stretch, this problem has been fixed in version 2.0.4+dfsg-1+deb9u1.

We recommend that you upgrade your luajit packages.

For the detailed security status of luajit please refer to its security tracker page at: https://security-tracker.debian.org/tracker/luajit

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS