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RUSTSEC-2025-0044

Four unique double-free vulnerabilities triggered via safe APIs

Reported
Issued
Package
slice-ring-buffer (crates.io)
Type
Vulnerability
Categories
Keywords
#memory-safety #double-free
References
Patched
no patched versions
Affected Functions
Version
slice_ring_buffer::IntoIter::clone
  • <=0.3.4
slice_ring_buffer::SliceRingBuffer::extend_from_slice
  • <=0.3.4
slice_ring_buffer::SliceRingBuffer::insert
  • <=0.3.4
slice_ring_buffer::SliceRingBuffer::shrink_to_fit
  • <=0.3.4

Description

The crate slice-ring-buffer was developed as a fork of slice-deque to continue maintenance and provide security patches, since the latter has been officially unmaintained (RUSTSEC-2020-0158).

While slice-ring-buffer has addressed some previously reported memory safety issues inherited from its fork origin (RUSTSEC-2021-0047), it still retains multiple unresolved memory corruption vulnerabilities.

Specifically, we have discovered four new memory safety bugs, each resulting in double-free violations that can occur when only safe APIs are invoked. These vulnerabilities correspond to four distinct safe APIs in the crate, each exposing unsound and vulnerable behavior due to incorrect usage of unsafe code internally.

Unfortunately, the maintainer doesn't have much availability to resolve these issues so there's no concrete timeline for fixes. Community contributions towards fixing these vulnerabilities would be much appreciated.

Advisory available under CC0-1.0 license.