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Security Advisories: GSA_kwCzR0hTQS14cnYzLWptY3AtMzc0as4AA9od

zerovec incorrectly uses `#[repr(packed)]`

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.

Permalink: https://github.com/advisories/GHSA-xrv3-jmcp-374j
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS14cnYzLWptY3AtMzc0as4AA9od
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 2 months ago
Updated: about 1 month ago

CVSS Score: 6.2
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Identifiers: GHSA-xrv3-jmcp-374j
References:

Blast Radius: 16.4

Affected Packages

cargo:zerovec

Dependent packages: 43
Dependent repositories: 441
Downloads: 3,316,425 total
Affected Version Ranges: < 0.9.7, >= 0.10.0, < 0.10.4
Fixed in: 0.9.7, 0.10.4
All affected versions: 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.3.0, 0.4.0, 0.4.1, 0.5.0, 0.6.0, 0.7.0, 0.8.0, 0.8.1, 0.9.0, 0.9.1, 0.9.2, 0.9.3, 0.9.4, 0.9.5, 0.9.6, 0.10.0, 0.10.1, 0.10.2, 0.10.3
All unaffected versions: 0.9.7, 0.10.4