RUSTSEC-2021-0100

    Dashboard / Vulnerabilities / RUSTSEC-2021-0100

    RUSTSEC-2021-0100

    Published: 8 Sept 2021Last Modified: 8 Nov 2023

    Summary: Miscomputed results when using AVX2 backend

    Details: The v0.9.7 release of the `sha2` crate introduced a new AVX2-accelerated backend which was automatically enabled for all x86/x86_64 CPUs where AVX2 support was autodetected at runtime. This backend was buggy and would miscompute results for long messages (i.e. messages spanning multiple SHA blocks). The crate has since been yanked, but any users who upgraded to v0.9.7 should immediately upgrade to v0.9.8 and recompute any hashes which were previously computed by v0.9.7.

    References: https://crates.io/crates/sha2, https://rustsec.org/advisories/RUSTSEC-2021-0100.html, https://github.com/RustCrypto/hashes/pull/314

    Affected packages

    Package

    Name: sha2

    Purl: pkg:cargo/sha2

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0.9.7
    Fixed -0.9.8

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RUSTSEC-2021-0100 | CVE-DB