QEMU DMA Buffer Size hw/net/rocker/rocker.c rocker_io_writel out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in QEMU. This impacts the function rocker_io_writel of the file hw/net/rocker/rocker.c of the component DMA Buffer Size Handler. The manipulation leads to out-of-bounds. This vulnerability is documented as CVE-2016-8668. The attack needs to be performed locally. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in QEMU (Virtualization Software) (affected version unknown). It has been rated as problematic. This issue affects the function rocker_io_writel of the file hw/net/rocker/rocker.c of the component DMA Buffer Size Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability. The summary by CVE is:

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.

The weakness was released 11/04/2016 with Huawei (Website). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2016-8668 since 10/15/2016. Attacking locally is a requirement. The successful exploitation needs a simple authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 94669 (Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : qemu, qemu-kvm vulnerabilities (USN-3125-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169386 (SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2016:2879-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 5 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (94669) and SecurityFocus (BID 93566†). Entries connected to this vulnerability are available at VDB-92453, VDB-92520, VDB-93998 and VDB-93999. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.8

VulDB Base Score: 6.0
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.0
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 94669
Nessus Name: Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : qemu, qemu-kvm vulnerabilities (USN-3125-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for qemu FEDORA-2017-b953d4d3a4
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure 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 🔍
11/09/2016 +2 days 🔍
11/10/2016 +1 days 🔍
09/29/2022 +2149 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: USN-3125-1
Organization: Huawei
Status: Not defined

CVE: CVE-2016-8668 (🔍)
GCVE (CVE): GCVE-0-2016-8668
GCVE (VulDB): GCVE-100-93311
SecurityFocus: 93566 - Qemu '/hw/net/rocker/rocker.c' Local Out-of-Bounds Read Vulnerability

See also: 🔍

Entryinfo

Created: 11/07/2016 22:10
Updated: 09/29/2022 14:36
Changes: 11/07/2016 22:10 (65), 05/26/2019 16:18 (14), 09/29/2022 14:36 (4)
Complete: 🔍
Cache ID: 216::103

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