CVE-2015-8539
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
AI Score
Confidence
High
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
9.3%
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.
References
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=096fe9eaea40a17e125569f9e657e34cdb6d73bd
lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00008.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00011.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00019.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00020.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00021.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00022.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00034.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
www.openwall.com/lists/oss-security/2015/12/09/1
access.redhat.com/errata/RHSA-2018:0151
access.redhat.com/errata/RHSA-2018:0152
access.redhat.com/errata/RHSA-2018:0181
bugzilla.redhat.com/show_bug.cgi?id=1284450
github.com/torvalds/linux/commit/096fe9eaea40a17e125569f9e657e34cdb6d73bd
usn.ubuntu.com/3798-1/
usn.ubuntu.com/3798-2/
Related
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
AI Score
Confidence
High
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
9.3%