CVE-2016-2197

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

QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block (CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance resulting in DoS.

References

http://www.openwall.com/lists/oss-security/2016/01/29/2

http://www.openwall.com/lists/oss-security/2016/01/30/1

http://www.securityfocus.com/bid/82235

https://bugzilla.redhat.com/show_bug.cgi?id=1302057

https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg05742.html

https://security.gentoo.org/glsa/201604-01

Details

Source: MITRE

Published: 2016-12-29

Updated: 2020-11-10

Type: CWE-476

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: 5.5

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to 2.5.1.1 (inclusive)

Tenable Plugins

View all (6 total)

IDNameProductFamilySeverity
93170SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2016:1703-1)NessusSuSE Local Security Checks
critical
91980openSUSE Security Update : qemu (openSUSE-2016-839)NessusSuSE Local Security Checks
critical
90339GLSA-201604-01 : QEMU: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
89605Fedora 22 : qemu-2.3.1-12.fc22 (2016-be042f7e6f)NessusFedora Local Security Checks
high
89599Fedora 23 : qemu-2.4.1-7.fc23 (2016-b49aaf2c56)NessusFedora Local Security Checks
high
88576Ubuntu 12.04 LTS / 14.04 LTS / 15.10 : qemu, qemu-kvm vulnerabilities (USN-2891-1)NessusUbuntu Local Security Checks
high