Deps.rs

cfg-expr 0.7.4

[![dependency status](https://deps.rs/crate/cfg-expr/0.7.4/status.svg)](https://deps.rs/crate/cfg-expr/0.7.4)

This project might be open to known security vulnerabilities, which can be prevented by tightening the version range of affected dependencies. Find detailed information at the bottom.

Crate cfg-expr

Dependencies

(2 total, 1 outdated, 1 possibly insecure)

CrateRequiredLatestStatus
 smallvec ⚠️^1.61.13.2maybe insecure
 target-lexicon^0.11.20.12.16out of date

Dev dependencies

(1 total, all up-to-date)

CrateRequiredLatestStatus
 difference^2.02.0.0up to date

Security Vulnerabilities

smallvec: Buffer overflow in SmallVec::insert_many

RUSTSEC-2021-0003

A bug in the SmallVec::insert_many method caused it to allocate a buffer that was smaller than needed. It then wrote past the end of the buffer, causing a buffer overflow and memory corruption on the heap.

This bug was only triggered if the iterator passed to insert_many yielded more items than the lower bound returned from its size_hint method.

The flaw was corrected in smallvec 0.6.14 and 1.6.1, by ensuring that additional space is always reserved for each item inserted. The fix also simplified the implementation of insert_many to use less unsafe code, so it is easier to verify its correctness.

Thank you to Yechan Bae (@Qwaz) and the Rust group at Georgia Tech’s SSLab for finding and reporting this bug.