Description in Sudo before 1.8.15 on Linux might allow local users to
bypass intended noexec command restrictions via an application that calls
the (1) system or (2) popen function.
sarnoldI'm marking this negligible because this feature seems doomed
to failure in the general case. Any sort of memory-protection flaws
in the target process, or ability to execute system calls directly,
or programs that don't use the standard C libraries, etc. won't be
affected by this feature.
If you rely upon this feature I suggest instead seccomp2-based
filters to disable the execve() and execveat() system calls at the
kernel interface or AppArmor (or other MAC system) to restrict which
executables can be executed.
Source: sudo (LP Ubuntu Debian)
Upstream:released (1.8.15-1)
Ubuntu 12.04 ESM (Precise Pangolin):needed
Ubuntu 14.04 ESM (Trusty Tahr):needed
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (1.8.16-0ubuntu1.2)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected
Ubuntu 19.04 (Disco Dingo):not-affected
Ubuntu 19.10 (Eoan Ermine):not-affected
Ubuntu 20.04 (Focal Fossa):not-affected
More Information

Updated: 2019-12-05 19:32:55 UTC (commit 0aa5e7c87c8b55d2ec5c7f4ca1179cf75de91961)