6.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
6.5 Medium
AI Score
Confidence
Low
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.001 Low
EPSS
Percentile
26.2%
arch/x86/kvm/x86.c in the Linux kernel before 4.4 does not reset the PIT counter values during state restoration, which allows guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via a zero value, related to the kvm_vm_ioctl_set_pit and kvm_vm_ioctl_set_pit2 functions.
CPE | Name | Operator | Version |
---|---|---|---|
ubuntu_linux | eq | 15.10 | |
ubuntu_linux | eq | 15.04 | |
ubuntu_linux | eq | 14.04 | |
ubuntu_linux | eq | 12.04 | |
debian_linux | eq | 8.0 | |
debian_linux | eq | 7.0 | |
fedora | eq | 22 | |
fedora | eq | 23 | |
linux_kernel | eq | 4.4 rc6 | |
linux_kernel | eq | 4.4 rc5 |
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0185604c2d82c560dab2f2933a18f797e74ab5a8
www.debian.org/security/2016/dsa-3434
www.openwall.com/lists/oss-security/2016/01/07/2
www.securityfocus.com/bid/79901
www.securitytracker.com/id/1034602
www.ubuntu.com/usn/USN-2886-1
www.ubuntu.com/usn/USN-2887-1
www.ubuntu.com/usn/USN-2887-2
www.ubuntu.com/usn/USN-2888-1
www.ubuntu.com/usn/USN-2889-1
www.ubuntu.com/usn/USN-2889-2
www.ubuntu.com/usn/USN-2890-1
www.ubuntu.com/usn/USN-2890-2
www.ubuntu.com/usn/USN-2890-3
bugzilla.redhat.com/show_bug.cgi?id=1284847
github.com/torvalds/linux/commit/0185604c2d82c560dab2f2933a18f797e74ab5a8
lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
lists.fedoraproject.org/pipermail/package-announce/2016-January/175792.html
lists.fedoraproject.org/pipermail/package-announce/2016-January/176194.html
6.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
6.5 Medium
AI Score
Confidence
Low
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.001 Low
EPSS
Percentile
26.2%