high
7.5
CWE
399 770
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2015-5963

First published: Wed Aug 12 2015(Updated: )

`contrib.sessions.middleware.SessionMiddleware` in Django 1.8.x before 1.8.4, 1.7.x before 1.7.10, 1.4.x before 1.4.22, and possibly other versions allows remote attackers to cause a denial of service (session store consumption or session record removal) via a large number of requests to `contrib.auth.views.logout`, which triggers the creation of an empty session record.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
pip/Django>=1.4<1.4.22
1.4.22
pip/Django>=1.7<1.7.10
1.7.10
pip/Django>=1.8<1.8.4
1.8.4
Django=1.4
Django=1.4.1
Django=1.4.2
Django=1.4.4
Django=1.4.5
Django=1.4.6
Django=1.4.7
Django=1.4.8
Django=1.4.9
Django=1.4.10
Django=1.4.11
Django=1.4.12
Django=1.4.13
Django=1.4.14
Django=1.4.17
Django=1.4.19
Django=1.4.20
Django=1.4.21
Django=1.7-beta1
Django=1.7-beta2
Django=1.7-beta3
Django=1.7-beta4
Django=1.7-rc1
Django=1.7-rc2
Django=1.7-rc3
Django=1.7.1
Django=1.7.2
Django=1.7.3
Django=1.7.4
Django=1.7.5
Django=1.7.6
Django=1.7.7
Django=1.7.8
Django=1.7.9
Django=1.8-beta1
Django=1.8.0
Django=1.8.1
Django=1.8.2
Django=1.8.3
Oracle Solaris and Zettabyte File System (ZFS)=11.3
Ubuntu=12.04
Ubuntu=14.04
Ubuntu=15.04

Remedy

https://www.djangoproject.com/weblog/2015/aug/18/security-releases/

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2015-5963?

    CVE-2015-5963 has been categorized as a denial of service vulnerability affecting certain versions of Django.

  • How do I fix CVE-2015-5963?

    The vulnerability CVE-2015-5963 can be fixed by upgrading Django to version 1.4.22, 1.7.10, or 1.8.4 or later.

  • Which Django versions are affected by CVE-2015-5963?

    CVE-2015-5963 affects Django versions 1.8.x before 1.8.4, 1.7.x before 1.7.10, and 1.4.x before 1.4.22.

  • What type of attack is possible with CVE-2015-5963?

    CVE-2015-5963 allows remote attackers to cause a denial of service through excessive session store consumption or removal of session records.

  • Is there a workaround for CVE-2015-5963 if I cannot upgrade?

    While upgrading is the best solution for CVE-2015-5963, you may consider implementing rate limiting to mitigate potential abuse.

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