🛡️ GHSA-xrv3-jmcp-374j — zerovec

⚪ Unknown ✅ No Known Exploit CWE-120 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity high, availability none.

Weakness class

GHSA-xrv3-jmcp-374j is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.

Affected software

GHSA-xrv3-jmcp-374j is recorded against 1 package.

  • zerovec

Timeline and source

Published on 8 July 2024 and last revised on 4 February 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

rustsec.org (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CWE CWE-120
Public Exploit ✅ No
Source OSV
Published 2024-07-08
Updated 2026-08-20
Modified 2026-02-04
Fix URL N/A

Affected Packages

Software From version Fixed in
zerovec — —

Similar Threats

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