[pnet] Compiler optimisation leads to SEGFAULT

Affected versions of the pnet crate were optimized out by compiler, which caused dereference of uninitialized file descriptor which caused segfault.
References

https://github.com/libpnet/libpnet/issues/449
https://github.com/libpnet/libpnet/pull/455
h…

[tar] Path trav in tar

An issue was discovered in the tar crate before 0.4.36 for Rust. When symlinks are present in a TAR archive, extraction can create arbitrary directories via .. traversal.
References

https://nvd.nist.gov/vuln/detail/CVE-2021-38511
https://github.com/al…