UBUNTU-CVE-2018-1000656

    Dashboard / Vulnerabilities / UBUNTU-CVE-2018-1000656

    UBUNTU-CVE-2018-1000656

    Published: 20 Aug 2018Last Modified: 4 Feb 2026
    Aliases:
    USN-4378-1

    Summary:

    Details: The Pallets Project flask version Before 0.12.3 contains a CWE-20: Improper Input Validation vulnerability in flask that can result in Large amount of memory usage possibly leading to denial of service. This attack appear to be exploitable via Attacker provides JSON data in incorrect encoding. This vulnerability appears to have been fixed in 0.12.3. NOTE: this may overlap CVE-2019-1010083.

    References: https://ubuntu.com/security/CVE-2018-1000656, https://github.com/pallets/flask/releases/tag/0.12.3, https://ubuntu.com/security/notices/USN-4378-1, https://www.cve.org/CVERecord?id=CVE-2018-1000656

    Affected packages

    Package

    Name: flask

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.10.1-2ubuntu0.1~esm1

    Affected versions

    0.10.1-2
    0.10.1-2build1

    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