QEMU hw/dma/rc4030.c rc4030_write divide by zero

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability was found in QEMU (Virtualization Software) (version unknown). It has been declared as critical. This vulnerability affects the function rc4030_write of the file hw/dma/rc4030.c. The manipulation with an unknown input leads to a divide by zero vulnerability. The CWE definition for the vulnerability is CWE-369. The product divides a value by zero. As an impact it is known to affect availability. CVE summarizes:

The rc4030_write function in hw/dma/rc4030.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (divide-by-zero error and QEMU process crash) via a large interval timer reload value.

The weakness was published 11/04/2016 with Huawei (Website). The advisory is available at openwall.com. This vulnerability was named CVE-2016-8667 since 10/15/2016. Local access is required to approach this attack. The successful exploitation requires a single authentication. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 900047 , which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169412 (SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2016:2988-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (900047) and SecurityFocus (BID 93567†).

Productinfo

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Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.0
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.0
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 900047
Nessus File: 🔍

OpenVAS ID: 65785
OpenVAS Name: SuSE Update for qemu openSUSE-SU-2016:3103-1 (qemu)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/14/2016 🔍
10/15/2016 +1 days 🔍
11/04/2016 +20 days 🔍
11/04/2016 +0 days 🔍
11/07/2016 +3 days 🔍
09/29/2022 +2152 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: DLA 1497-1
Organization: Huawei
Status: Not defined

CVE: CVE-2016-8667 (🔍)
SecurityFocus: 93567 - QEMU 'hw/dma/rc4030.c' Divide By Zero Denial of Service Vulnerability

Entryinfo

Created: 11/07/2016 10:10 PM
Updated: 09/29/2022 02:34 PM
Changes: 11/07/2016 10:10 PM (57), 05/26/2019 04:19 PM (12), 09/29/2022 02:34 PM (2)
Complete: 🔍
Cache ID: 98:829:40

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