Red Hat Security Advisory 2024-3428-03

Red Hat Security Advisory 2024-3418-03 - An update for rust is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.

Red Hat Security Advisory 2023-4651-01 - Rust Toolset provides the Rust programming language compiler rustc, the cargo build tool and dependency manager, and required libraries.

Red Hat Security Advisory 2023-4635-01 - Rust Toolset provides the Rust programming language compiler rustc, the cargo build tool and dependency manager, and required libraries.

Red Hat Security Advisory 2023-4634-01 - Rust Toolset provides the Rust programming language compiler rustc, the cargo build tool and dependency manager, and required libraries.

An update for rust-toolset-1.66-rust is now available for Red Hat Developer Tools. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2023-38497: A flaw was found in the rust-cargo package. Cargo, as bundled with the Rust compiler, did not respect the umask when extracting dependency tarballs and caching the extraction for future builds. If a dependency contained files with 0777 permissions, another local user could edit the cache of the extracted source code, potentially exec...

Cargo downloads the Rust project’s dependencies and compiles the project. Cargo prior to version 0.72.2, bundled with Rust prior to version 1.71.1, 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. To prevent existing cached extractions from being exploitable, the Cargo binary version 0.72.2 included in Rust 1.71.1 or later will purge caches generated by older Cargo versions automatically. As a workaround, configure one's system to prevent other local users from accessing the Cargo directory, usually located in `~/.cargo`.

Ubuntu Security Notice 6275-1 - Addison Crump discovered that Cargo incorrectly set file permissions on UNIX-like systems when extracting crate archives. If the crate would contain files writable by any user, a local attacker could possibly use this issue to execute code as another user.

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][1]" is configured on most systems to limit those permissions during file creation, removing dangerous ones. For example, the default umask on macOS and most Linux distributions only allow the user owning a file to write to it, preventing the group owning it or other local users from doing the same. When a dependency is downloaded by Cargo, its source code has to be extracted on disk to allow the Rust compiler to read as part of the build. To ...