RUSTSEC-2019-0002
Dashboard / Vulnerabilities / RUSTSEC-2019-0002
Summary: Bug in SliceDeque::move_head_unchecked corrupts its memory
Details: Affected versions of this crate entered a corrupted state if `mem::size_of::<T>() % allocation_granularity() != 0` and a specific allocation pattern was used: sufficiently shifting the deque elements over the mirrored page boundary. This allows an attacker that controls controls both element insertion and removal to corrupt the deque, such that reading elements from it would read bytes corresponding to other elements in the deque. (e.g. a read of T could read some bytes from one value and some bytes from an adjacent one, resulting in a T whose value representation is not meaningful). This is undefined behavior. The flaw was corrected by using a pair of pointers to track the head and tail of the deque instead of a pair of indices. This pair of pointers are represented using a Rust slice.
References: https://crates.io/crates/slice-deque, https://rustsec.org/advisories/RUSTSEC-2019-0002.html, https://github.com/gnzlbg/slice_deque/issues/57
Affected packages
Package
Name: slice-deque
Purl: pkg:cargo/slice-deque
Affected ranges
Type: SEMVER
Events:
