CVE-2021-31162

In the standard library in Rust before 1.52.0, a double free can occur in the Vec::from_iter function if freeing the element panics.

In the standard library in Rust before 1.52.0, a double free can occur in the Vec::from_iter function if freeing the element panics.

Rust Toolset provides the Rust programming language compiler rustc, the cargo build tool and dependency manager, and required libraries.

The following packages have been upgraded to a later upstream version: rust (1.52.1). (BZ#1953002)

Security Fix(es):

• rust: optimization for joining strings can cause uninitialized bytes to be exposed (CVE-2020-36323)

• rust: heap-based buffer overflow in read_to_end() because it does not validate the return value from Read in an unsafe context (CVE-2021-28875)

• rust: panic safety issue in Zip implementation (CVE-2021-28876)

• rust: memory safety violation in Zip implementation for nested iter::Zips (CVE-2021-28877)

• rust: memory safety violation in Zip implementation when next_back() and next() are used together (CVE-2021-28878)

• rust: integer overflow in the Zip implementation can lead to a buffer overflow (CVE-2021-28879)

• rust: double free in Vec::from_iter function if freeing the element panics (CVE-2021-31162)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

For information on usage, see Using Rust Toolset linked in the References section.

In the standard library in Rust before 1.52.0, a double free can occur in the Vec::from_iter function if freeing the element panics.

This Rust update to version 1.52.1 includes security fixes for CVE-2020-36323, CVE-2021-28876, CVE-2021-28878, CVE-2021-28879, and CVE-2021-31162. These are memory safety bugs in the Rust standard library. Because it is statically linked, affected applications will need to be rebuilt to benefit from the fixes. The actual security implications will depend on how these APIs are used in each particular case.

This update also provides new features and bugfixes included in Rust since the previously packaged version 1.49.0. See the referenced release notes for details.

The mozjs78 package is also updated from version 78.7.0 to 78.11.0 (ESR).