GHSA-6g87-ff9q-v847

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    GHSA-6g87-ff9q-v847

    Published: 17 Sept 2018Last Modified: 19 Nov 2024

    Summary: websockets is vulnerable to denial of service by memory exhaustion

    Details: The Python websockets library version 4 contains a CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in Servers and clients, unless configured with compression=None that can result in Denial of Service by memory exhaustion. This attack appears to be exploitable via sending a specially crafted frame on an established connection. This vulnerability appears to have been fixed in version 5.0

    References: https://nvd.nist.gov/vuln/detail/CVE-2018-1000518, https://github.com/aaugustin/websockets/pull/407, https://github.com/aaugustin/websockets, https://github.com/pypa/advisory-database/tree/main/vulns/websockets/PYSEC-2018-79.yaml

    Affected packages

    Package

    Name: websockets

    Purl: pkg:pypi/websockets

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 4.0
    Fixed -5.0

    Affected versions

    4.0
    4.0.1

    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