UBUNTU-CVE-2018-7536

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    UBUNTU-CVE-2018-7536

    Published: 6 Mar 2018Last Modified: 4 Feb 2026
    Upstream:
    CVE-2018-7536
    Aliases:
    USN-3591-1

    Summary:

    Details: An issue was discovered in Django 2.0 before 2.0.3, 1.11 before 1.11.11, and 1.8 before 1.8.19. The django.utils.html.urlize() function was extremely slow to evaluate certain inputs due to catastrophic backtracking vulnerabilities in two regular expressions (only one regular expression for Django 1.8.x). The urlize() function is used to implement the urlize and urlizetrunc template filters, which were thus vulnerable.

    References: https://ubuntu.com/security/CVE-2018-7536, https://www.djangoproject.com/weblog/2018/mar/06/security-releases/, https://ubuntu.com/security/notices/USN-3591-1, https://www.cve.org/CVERecord?id=CVE-2018-7536

    Affected packages

    Package

    Name: python-django

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.6.11-0ubuntu1.2

    Affected versions

    1.5.4-1ubuntu1

    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