Medium, CVSS 6.9crates.ioPublished
zerovec incorrectly uses #[repr(packed)]
GHSA-xrv3-jmcp-374j
- Affected
- crates.io zerovec >= 0.10.0, < 0.10.4; < 0.9.7
- Fixed in
- 0.9.70.10.4· Vendor fix available
- Issue
- The affected versions make unsafe memory accesses under the assumption that #[repr(packed)] has a guaranteed field order. The Rust specification does not guarantee this, and https://github.com/rust-lang/rust/pull/125360 (1.80.0-beta) starts reordering fields of #[repr(packed)] structs, leading to illegal memory accesses. The patched versions 0.9.7 and 0.10.4 use #[repr(C, packed)], which guarantees field order.
Recommended action: Upgrade to 0.10.4 or 0.9.7 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.