GHSA-6w4m-2xhg-2658

    Dashboard / Vulnerabilities / GHSA-6w4m-2xhg-2658

    GHSA-6w4m-2xhg-2658

    Published: 26 Apr 2023Last Modified: 10 Sept 2026

    Summary: Buffer overflow in sponge queue functions

    Details: ### Impact The Keccak sponge function interface accepts partial inputs to be absorbed and partial outputs to be squeezed. A buffer can overflow when partial data with some specific sizes are queued, where at least one of them has a length of 2^32 - 200 bytes or more. ### Patches Yes, see commit [fdc6fef0](https://github.com/XKCP/XKCP/commit/fdc6fef075f4e81d6b1bc38364248975e08e340a). ### Workarounds The problem can be avoided by limiting the size of the partial input data (or partial output digest) below 2^32 - 200 bytes. Multiple calls to the queue system can be chained at a higher level to retain the original functionality. Alternatively, one can process the entire input (or produce the entire output) at once, avoiding the queuing functions altogether. ### References See [issue #105](https://github.com/XKCP/XKCP/issues/105) for more details.

    Affected packages

    Package

    Name: pysha3

    Purl: pkg:pypi/pysha3

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.1

    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
    GHSA-6w4m-2xhg-2658 | CVE-DB