Problem Description:
A particular case of memory sharing is mishandled in the virtual
memory system. This is very similar to SA-21:08.vm, but with a
different root cause.
Impact:
An unprivileged local user process can maintain a mapping of a page
after it is freed, allowing that process to read private data
belonging to other processes or the kernel.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
FreeBSD | any | noarch | freebsd-kernel | = 13.1 | UNKNOWN |
FreeBSD | any | noarch | freebsd-kernel | < 13.1_1 | UNKNOWN |