Rust: Security advisory for Cargo (CVE-2023-38497)

[NewsBot]

A new Rust blog post/announcement has been posted!

This is a cross-post of the official security advisory. The official advisory contains a signed version with our PGP key, as well.

The Rust Security Response WG was notified that Cargo did not respect the umask when extracting crate archives on UNIX-like systems. If the user downloaded a crate containing files writeable by any local user, another local user could exploit this to change the source code compiled and executed by the current user.

This vulnerability has been assigned CVE-2023-38497.

Overview

In UNIX-like systems, each file has three sets of permissions: for the user owning the file, for the group owning the file, and for all other local users. The "umask" is configured on most systems to limit t...

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