National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-8539 Detail

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.

Source:  MITRE
Description Last Modified:  02/07/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=096fe9eaea40a17e125569f9e657e34cdb6d73bd Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00019.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00022.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00034.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
http://www.openwall.com/lists/oss-security/2015/12/09/1
https://access.redhat.com/errata/RHSA-2018:0151
https://access.redhat.com/errata/RHSA-2018:0152
https://access.redhat.com/errata/RHSA-2018:0181
https://bugzilla.redhat.com/show_bug.cgi?id=1284450 Issue Tracking
https://github.com/torvalds/linux/commit/096fe9eaea40a17e125569f9e657e34cdb6d73bd

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Change History

9 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-8539
NVD Published Date:
02/07/2016
NVD Last Modified:
01/26/2018