CVE-2016-8668

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

The rocker_io_writel function in hw/net/rocker/rocker.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging failure to limit DMA buffer size.

References

http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html

http://www.openwall.com/lists/oss-security/2016/10/14/8

http://www.openwall.com/lists/oss-security/2016/10/15/9

http://www.securityfocus.com/bid/93566

https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02501.html

https://security.gentoo.org/glsa/201611-11

Details

Source: MITRE

Published: 2016-11-04

Updated: 2020-10-21

Type: CWE-120

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 6

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Impact Score: 4

Exploitability Score: 1.5

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to 2.7.1 (inclusive)

Configuration 2

OR

cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*

Tenable Plugins

View all (6 total)

IDNameProductFamilySeverity
96782Fedora 24 : 2:qemu (2017-12394e2cc7)NessusFedora Local Security Checks
high
96677Fedora 25 : 2:qemu (2017-b953d4d3a4)NessusFedora Local Security Checks
high
96129openSUSE Security Update : qemu (openSUSE-2016-1504)NessusSuSE Local Security Checks
critical
95283SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2016:2879-1)NessusSuSE Local Security Checks
critical
95018GLSA-201611-11 : QEMU: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
94669Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : qemu, qemu-kvm vulnerabilities (USN-3125-1)NessusUbuntu Local Security Checks
critical