CVE-2015-5157

HIGH

Description

arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform mishandles IRET faults in processing NMIs that occurred during userspace execution, which might allow local users to gain privileges by triggering an NMI.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b6e6a8334d56354853f9c255d1395c2ba570e0a

http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00009.html

http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.html

http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.html

http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.html

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html

http://rhn.redhat.com/errata/RHSA-2016-0185.html

http://rhn.redhat.com/errata/RHSA-2016-0212.html

http://rhn.redhat.com/errata/RHSA-2016-0224.html

http://rhn.redhat.com/errata/RHSA-2016-0715.html

http://www.debian.org/security/2015/dsa-3313

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.6

http://www.openwall.com/lists/oss-security/2015/07/22/7

http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

http://www.securityfocus.com/bid/76005

http://www.ubuntu.com/usn/USN-2687-1

http://www.ubuntu.com/usn/USN-2688-1

http://www.ubuntu.com/usn/USN-2689-1

http://www.ubuntu.com/usn/USN-2690-1

http://www.ubuntu.com/usn/USN-2691-1

https://github.com/torvalds/linux/commit/9b6e6a8334d56354853f9c255d1395c2ba570e0a

Details

Source: MITRE

Published: 2015-08-31

Updated: 2016-12-22

Type: CWE-264

Risk Information

CVSS v2.0

Base Score: 7.2

Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C)

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH