Vulnerability CVE-2015-4692
Published: 2015-07-27   Modified: 2015-07-30

Description:
The kvm_apic_has_events function in arch/x86/kvm/lapic.h in the Linux kernel through 4.1.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging /dev/kvm access for an ioctl call.

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Linux -> Linux kernel 

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160829.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161144.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html
http://www.debian.org/security/2015/dsa-3329
http://www.openwall.com/lists/oss-security/2015/06/21/1
http://www.securityfocus.com/bid/75142
http://www.securitytracker.com/id/1032798
http://www.ubuntu.com/usn/USN-2680-1
http://www.ubuntu.com/usn/USN-2681-1
http://www.ubuntu.com/usn/USN-2682-1
http://www.ubuntu.com/usn/USN-2683-1
http://www.ubuntu.com/usn/USN-2684-1
https://bugzilla.redhat.com/show_bug.cgi?id=1230770
https://github.com/torvalds/linux/commit/ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009
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