========================================================================== Ubuntu Security Notice USN-8139-1 April 01, 2026
rust-cargo-c vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 Summary: cargo-c could be made to modify permissions on arbitrary directories. Software Description: - rust-cargo-c: Helper program to build and install c-like libraries Details: It was discovered that tar-rs embedded in cargo-c incorrectly handled symlinks when unpacking a tar archive. If a user or automated system were tricked into processing a specially crafted tar archive, a remote attacker could use this issue to modify permissions of arbitrary directories outside the extraction root, and possibly escalate privileges. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 cargo-c 0.10.11-1ubuntu1.1 librust-cargo-c-dev 0.10.11-1ubuntu1.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8139-1 CVE-2026-33056 Package Information: https://launchpad.net/ubuntu/+source/rust-cargo-c/0.10.11-1ubuntu1.1
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