QEMU hw/scsi/megasas.c megasas_dcmd_cfg_read Memory information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in QEMU. Impacted is the function megasas_dcmd_cfg_read of the file hw/scsi/megasas.c. Performing a manipulation results in information disclosure (Memory). This vulnerability is identified as CVE-2016-5105. The attack is only possible with local access. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in QEMU (Virtualization Software) (version now known). It has been classified as problematic. This affects the function megasas_dcmd_cfg_read of the file hw/scsi/megasas.c. The manipulation with an unknown input leads to a information disclosure vulnerability (Memory). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

The megasas_dcmd_cfg_read function in hw/scsi/megasas.c in QEMU, when built with MegaRAID SAS 8708EM2 Host Bus Adapter emulation support, uses an uninitialized variable, which allows local guest administrators to read host memory via vectors involving a MegaRAID Firmware Interface (MFI) command.

The weakness was released 09/02/2016 (Website). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2016-5105 since 05/26/2016. An attack has to be approached locally. Required for exploitation is a authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 92168 (Fedora 24 : xen (2016-cfea37952b)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176848 (Debian Security Update for qemu (DLA 1599-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (92168) and SecurityFocus (BID 93275†). Entries connected to this vulnerability are available at VDB-81088, VDB-81198, VDB-81711 and VDB-82912. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.1
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.1
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

Name: Memory
Class: Information disclosure / Memory
CWE: CWE-200 / CWE-284 / CWE-266
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: 92168
Nessus Name: Fedora 24 : xen (2016-cfea37952b)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 863050
OpenVAS Name: Fedora Update for qemu FEDORA-2016-73853a7a16
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/26/2016 🔍
05/30/2016 +4 days 🔍
07/14/2016 +45 days 🔍
09/02/2016 +50 days 🔍
09/02/2016 +0 days 🔍
09/03/2016 +1 days 🔍
09/14/2022 +2202 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: USN-3047-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-5105 (🔍)
GCVE (CVE): GCVE-0-2016-5105
GCVE (VulDB): GCVE-100-91041
SecurityFocus: 93275

See also: 🔍

Entryinfo

Created: 09/03/2016 10:14
Updated: 09/14/2022 15:17
Changes: 09/03/2016 10:14 (63), 04/07/2019 16:10 (12), 09/14/2022 15:17 (3)
Complete: 🔍
Cache ID: 216:5E7:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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