QEMU USB Redirector resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

A vulnerability classified as critical has been found in QEMU (Virtualization Software) (the affected version unknown). This affects an unknown part of the component USB Redirector. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

Quick Emulator (Qemu) built with the USB redirector usb-guest support is vulnerable to a memory leakage flaw. It could occur while destroying the USB redirector in 'usbredir_handle_destroy'. A guest user/process could use this issue to leak host memory, resulting in DoS for a host.

The bug was discovered 12/23/2016. The weakness was released 12/23/2016 by Prasad J Pandit (Website). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2016-9907 since 12/08/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 96529 (SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:0127-1)), 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 169489 (SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2017:0127-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (96529). Entries connected to this vulnerability are available at 94672, 94673, 94674 and 94722.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 8.6
VulDB Temp Score: 8.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 96529
Nessus Name: SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:0127-1)
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: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

12/08/2016 🔍
12/08/2016 +0 days 🔍
12/23/2016 +15 days 🔍
12/23/2016 +0 days 🔍
12/23/2016 +0 days 🔍
12/24/2016 +1 days 🔍
01/13/2017 +20 days 🔍
01/16/2017 +3 days 🔍
10/12/2022 +2095 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: RHSA-2017:2392
Researcher: Prasad J Pandit
Status: Not defined

CVE: CVE-2016-9907 (🔍)
SecurityFocus: 94759 - QEMU '/hw/usb/redirect.c' Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 12/24/2016 18:28
Updated: 10/12/2022 16:43
Changes: 12/24/2016 18:28 (71), 07/15/2019 15:59 (7), 10/12/2022 16:43 (3)
Complete: 🔍

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