QEMU Device Control Information hw/scsi/megasas.c megasas_ctrl_get_info information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in QEMU. This affects the function megasas_ctrl_get_info of the file hw/scsi/megasas.c of the component Device Control Information Handler. Such manipulation leads to information disclosure. This vulnerability is referenced as CVE-2016-5337. The attack can only be performed from a local environment. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in QEMU (Virtualization Software) (version unknown). It has been rated as critical. Affected by this issue is the function megasas_ctrl_get_info of the file hw/scsi/megasas.c of the component Device Control Information Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The megasas_ctrl_get_info function in hw/scsi/megasas.c in QEMU allows local guest OS administrators to obtain sensitive host memory information via vectors related to reading device control information.

The weakness was published 06/14/2016 by Li Qiang with Qihoo 360 (Website). The advisory is shared for download at lists.gnu.org. This vulnerability is handled as CVE-2016-5337 since 06/08/2016. The exploitation is known to be easy. The attack needs to be approached locally. The successful exploitation requires a simple authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 94758 (SUSE SLES12 Security Update : qemu (SUSE-SU-2016:2781-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196546 (Ubuntu Security Notification for Qemu, Qemu-kvm Vulnerabilities (USN-3047-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 6 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (94758) and SecurityFocus (BID 91097†). Similar entries are available at VDB-87707, VDB-87708, VDB-87712 and VDB-87919. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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: Information disclosure
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: 94758
Nessus Name: SUSE SLES12 Security Update : qemu (SUSE-SU-2016:2781-1)
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: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: 844864fbae66935951529408831c2f22367a57b6

Timelineinfo

06/08/2016 🔍
06/08/2016 +0 days 🔍
06/14/2016 +6 days 🔍
06/14/2016 +0 days 🔍
06/15/2016 +1 days 🔍
11/11/2016 +149 days 🔍
11/14/2016 +3 days 🔍
08/23/2022 +2108 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: USN-3047-1
Researcher: Li Qiang
Organization: Qihoo 360
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-5337 (🔍)
GCVE (CVE): GCVE-0-2016-5337
GCVE (VulDB): GCVE-100-87920
SecurityFocus: 91097 - QEMU 'megasas_ctrl_get_info()' Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 06/15/2016 18:17
Updated: 08/23/2022 15:49
Changes: 06/15/2016 18:17 (66), 01/23/2019 08:33 (16), 08/23/2022 15:49 (5)
Complete: 🔍
Cache ID: 216::103

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