National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2015-7513 Detail

Description

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.

Source:  MITRE
Description Last Modified:  02/07/2016

Evaluator Description

CWE-369: Divide By Zero

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.5 MEDIUM
Vector: AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H (V3 legend)
Impact Score: 4.0
Exploitability Score: 2.0

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 4.9 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0185604c2d82c560dab2f2933a18f797e74ab5a8 Vendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175792.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176194.html
http://www.debian.org/security/2016/dsa-3434
http://www.openwall.com/lists/oss-security/2016/01/07/2
http://www.securityfocus.com/bid/79901
http://www.securitytracker.com/id/1034602
http://www.ubuntu.com/usn/USN-2886-1
http://www.ubuntu.com/usn/USN-2887-1
http://www.ubuntu.com/usn/USN-2887-2
http://www.ubuntu.com/usn/USN-2888-1
http://www.ubuntu.com/usn/USN-2889-1
http://www.ubuntu.com/usn/USN-2889-2
http://www.ubuntu.com/usn/USN-2890-1
http://www.ubuntu.com/usn/USN-2890-2
http://www.ubuntu.com/usn/USN-2890-3
https://bugzilla.redhat.com/show_bug.cgi?id=1284847
https://github.com/torvalds/linux/commit/0185604c2d82c560dab2f2933a18f797e74ab5a8

Technical Details

Vulnerability Type (View All)

Change History

8 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-7513
NVD Published Date:
02/07/2016
NVD Last Modified:
11/03/2017