UBUNTU-CVE-2024-3651

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    UBUNTU-CVE-2024-3651

    Published: 23 Apr 2024Last Modified: 4 Feb 2026
    Upstream:
    CVE-2024-3651

    Summary:

    Details: A vulnerability was identified in the kjd/idna library, specifically within the `idna.encode()` function, affecting version 3.6. The issue arises from the function's handling of crafted input strings, which can lead to quadratic complexity and consequently, a denial of service condition. This vulnerability is triggered by a crafted input that causes the `idna.encode()` function to process the input with considerable computational load, significantly increasing the processing time in a quadratic manner relative to the input size.

    References: https://ubuntu.com/security/CVE-2024-3651, https://www.cve.org/CVERecord?id=CVE-2024-3651, https://github.com/kjd/idna/security/advisories/GHSA-jjg7-2v4v-x38h, https://ubuntu.com/security/notices/USN-6780-1, https://ubuntu.com/security/notices/USN-7762-1

    Affected packages

    Package

    Name: python-idna

    Purl: pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=esm-infra/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0-3ubuntu0.1~esm1

    Affected versions

    2.0-3

    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
    UBUNTU-CVE-2024-3651 | CVE-DB