CVE-2015-8539

Published: Feb 8, 2016Modified: May 6, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

The KEYS subsystem in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key, related to security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and security/keys/user_defined.c.

Affected (6)

Products: Canonical: Ubuntu Linux · Suse: Linux Enterprise Real Time Extension · Linux: Linux Kernel

Canonical

1 product

Ubuntu Linux

Suse

1 product

Linux Enterprise Real Time Extension

Linux

1 product

Linux Kernel

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Canonical Ubuntu Linux	Version 12.04
Canonical Ubuntu Linux	Version 14.04
Suse Linux Enterprise Real Time Extension	Version 12 sp1

Configuration B

3 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 4.4
Linux Linux Kernel	Version 4.4 rc1
Linux Linux Kernel	Version 4.4 rc2

Related CWEs

CWE-269

Improper Privilege Management

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

References (48)

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=096fe9eaea40a17e125569f9e657e34cdb6d73bd

Source: cve@mitre.org

Vendor Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00008.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00011.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00019.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00020.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00021.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00022.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00034.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html

Source: cve@mitre.org

Third Party Advisory

http://www.openwall.com/lists/oss-security/2015/12/09/1

Source: cve@mitre.org

Issue TrackingMailing ListPatchThird Party Advisory

https://access.redhat.com/errata/RHSA-2018:0151

Source: cve@mitre.org

Third Party Advisory

https://access.redhat.com/errata/RHSA-2018:0152

Source: cve@mitre.org

Third Party Advisory

https://access.redhat.com/errata/RHSA-2018:0181

Source: cve@mitre.org

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1284450

Source: cve@mitre.org

Issue TrackingThird Party Advisory

https://github.com/torvalds/linux/commit/096fe9eaea40a17e125569f9e657e34cdb6d73bd

Source: cve@mitre.org

Issue TrackingPatchVendor Advisory

https://usn.ubuntu.com/3798-1/

Source: cve@mitre.org

Third Party Advisory

https://usn.ubuntu.com/3798-2/

Source: cve@mitre.org

Third Party Advisory

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=096fe9eaea40a17e125569f9e657e34cdb6d73bd