QEMU wdt_i6300esb.c resource management

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in QEMU. This vulnerability affects unknown code of the file hw/watchdog/wdt_i6300esb.c. The manipulation leads to resource management. This vulnerability is listed as CVE-2016-10155. The attack must be carried out locally. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in QEMU (Virtualization Software) (the affected version is unknown) and classified as problematic. This issue affects an unknown code of the file hw/watchdog/wdt_i6300esb.c. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

Memory leak in hw/watchdog/wdt_i6300esb.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption and QEMU process crash) via a large number of device unplug operations.

The bug was discovered 01/20/2017. The weakness was presented 03/15/2017 by Li Qiang with 360.cn Inc. (oss-sec). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2016-10155 since 01/20/2017. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 32 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 97271 (GLSA-201702-28 : QEMU: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169803 (SUSE Enterprise Linux Security Update for xen (SUSE-SU-2017:0647-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.qemu.org. 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 (97271) and SecurityFocus (BID 95770†). See VDB-98151, VDB-98146, VDB-98147 and VDB-98148 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.0
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 97271
Nessus Name: GLSA-201702-28 : QEMU: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for qemu FEDORA-2017-62ac1230f7
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.qemu.org

Timelineinfo

01/20/2017 🔍
01/20/2017 +0 days 🔍
01/20/2017 +0 days 🔍
02/21/2017 +32 days 🔍
02/21/2017 +0 days 🔍
03/15/2017 +22 days 🔍
03/15/2017 +0 days 🔍
03/16/2017 +1 days 🔍
09/08/2020 +1272 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: openwall.com
Researcher: Li Qiang
Organization: 360.cn Inc.
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10155 (🔍)
GCVE (CVE): GCVE-0-2016-10155
GCVE (VulDB): GCVE-100-98123
SecurityFocus: 95770 - QEMU CVE-2016-10155 Denial of Service Vulnerability
OSVDB: - CVE-2016-10155 - QEMU - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 03/16/2017 13:25
Updated: 09/08/2020 12:24
Changes: 03/16/2017 13:25 (78), 09/08/2020 12:24 (3)
Complete: 🔍
Cache ID: 216:395:103

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