VDB-92520 · CVE-2016-7423 · BID 92997

QEMU LSI SAS1068 Host Bus Emulation mptsas_process_scsi_io_request out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

A vulnerability classified as problematic has been found in QEMU (Virtualization Software) (version unknown). Affected is the function mptsas_process_scsi_io_request of the component LSI SAS1068 Host Bus Emulation. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-787. The software writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability.

The weakness was published 10/10/2016 by Li Qiang (Website). The advisory is shared for download at git.qemu.org. This vulnerability is traded as CVE-2016-7423 since 09/09/2016. The exploitability is told to be easy. The attack needs to be approached locally. The successful exploitation needs a authentication. There are known technical details, but no exploit is available.

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 local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196626 (Ubuntu Security Notification for Qemu, Qemu-kvm Vulnerabilities (USN-3125-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (94669). Similar entries are available at 93311, 93998, 93999 and 94000.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.4
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-787 / CWE-119
ATT&CK: Unknown

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: 65001
OpenVAS Name: Fedora Update for qemu FEDORA-2016-3d3218ec41
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: 🔍

Patch: 670e56d3ed2918b3861d9216f2c0540d9e9ae0d5

Timelineinfo

09/09/2016 🔍
09/16/2016 +7 days 🔍
10/10/2016 +24 days 🔍
10/10/2016 +0 days 🔍
10/11/2016 +1 days 🔍
11/09/2016 +29 days 🔍
11/10/2016 +1 days 🔍
09/22/2022 +2142 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: git.qemu.org
Researcher: Li Qiang
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7423 (🔍)
SecurityFocus: 92997 - QEMU CVE-2016-7423 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 10/11/2016 10:06 AM
Updated: 09/22/2022 06:16 PM
Changes: (5) vulnerability_cvss2_nvd_basescore vulnerability_cvss3_meta_tempscore exploit_price_0day countermeasure_patch_name countermeasure_patch_url
Complete: 🔍

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