medium
5.3
CWE
185
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2018-7536

First published: Tue Feb 27 2018(Updated: )

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.

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=17.10
Djangoproject Django>=1.8<1.8.19
Djangoproject Django>=1.11<1.11.11
Djangoproject Django>=2.0<2.0.3
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Redhat Openstack=10
Redhat Openstack=13
redhat/Django<2.0.3
2.0.3
redhat/Django<1.11.11
1.11.11
redhat/Django<1.8.19
1.8.19
debian/python-django
2:2.2.28-1~deb11u2
3:3.2.19-1+deb12u1
3:4.2.16-1
pip/Django>=1.8a1<1.8.19
1.8.19
pip/Django>=1.11a1<1.11.11
1.11.11
pip/Django>=2.0a1<2.0.3
2.0.3

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Reference Links

Frequently Asked Questions

  • What is CVE-2018-7536?

    CVE-2018-7536 is a vulnerability in Django 2.0 before 2.0.3, 1.11 before 1.11.11, and 1.8 before 1.8.19 that allows for catastrophic backtracking and can result in a denial of service attack.

  • How severe is CVE-2018-7536?

    CVE-2018-7536 has a severity rating of 5.3, which is considered medium.

  • How can I fix CVE-2018-7536?

    To fix CVE-2018-7536, upgrade to Django 1.8.19, 1.11.11, or 2.0.3 depending on the version you are using.

  • Where can I find more information about CVE-2018-7536?

    You can find more information about CVE-2018-7536 on the CVE Mitre website and the Django security releases page.

  • What is the common weakness enumeration (CWE) for CVE-2018-7536?

    The CWE for CVE-2018-7536 is CWE-185, which refers to a behavior that can expose sensitive information.

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