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    CVE-2015-5963

    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.

    Published:Aug 18, 2015
    Last Modified:Apr 12, 2025
    EPS:Aug 24, 2015
    EPSS Score:0.05738
    CVSS Score:5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Djangoproject
    Product
    Django
    Vendor
    Oracle
    Product
    Solaris
    Vendor
    Redhat
    Product
    Openstack

    Exploits

    No exploit reference

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    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
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    References

    http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172084.html
    http://lists.opensuse.org/opensuse-updates/2015-09/msg00026.html
    http://lists.opensuse.org/opensuse-updates/2015-09/msg00035.html
    http://rhn.redhat.com/errata/RHSA-2015-1766.html
    http://rhn.redhat.com/errata/RHSA-2015-1767.html
    http://rhn.redhat.com/errata/RHSA-2015-1894.html
    http://www.debian.org/security/2015/dsa-3338
    http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
    http://www.securityfocus.com/bid/76428
    http://www.securitytracker.com/id/1033318
    http://www.ubuntu.com/usn/USN-2720-1
    https://access.redhat.com/errata/RHSA-2015:1876
    https://www.djangoproject.com/weblog/2015/aug/18/security-releases/
    http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172084.html
    http://lists.opensuse.org/opensuse-updates/2015-09/msg00026.html
    http://lists.opensuse.org/opensuse-updates/2015-09/msg00035.html
    http://rhn.redhat.com/errata/RHSA-2015-1766.html
    http://rhn.redhat.com/errata/RHSA-2015-1767.html
    http://rhn.redhat.com/errata/RHSA-2015-1894.html
    http://www.debian.org/security/2015/dsa-3338
    http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
    http://www.securityfocus.com/bid/76428
    http://www.securitytracker.com/id/1033318
    http://www.ubuntu.com/usn/USN-2720-1
    https://access.redhat.com/errata/RHSA-2015:1876
    https://www.djangoproject.com/weblog/2015/aug/18/security-releases/

    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