CVE-2015-8539
HIGH severity · CVSS 7.8 · Improper privilege management
7.8CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=096fe9eaea40a17e125569f9e657e34cdb6d73bdAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00008.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00011.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00019.htmlAdvisory