QEMU USB EHCI Emulation memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in QEMU. Affected by this issue is some unknown functionality of the component USB EHCI Emulation. The manipulation results in memory corruption. This vulnerability is reported as CVE-2017-9374. The attack requires a local approach. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in QEMU (Virtualization Software) (affected version unknown). It has been classified as problematic. Affected is an unknown functionality of the component USB EHCI Emulation. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. CVE summarizes:

Memory leak in QEMU (aka Quick Emulator), when built with USB EHCI Emulation support, allows local guest OS privileged users to cause a denial of service (memory consumption) by repeatedly hot-unplugging the device.

The bug was discovered 06/06/2017. The weakness was disclosed 06/16/2017 by Li Qiang with Qihoo 360 (oss-sec). The advisory is available at openwall.com. This vulnerability is traded as CVE-2017-9374 since 06/02/2017. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 101985 (Debian DSA-3920-1 : qemu - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170139 (SUSE Enterprise Linux Security Update for xen (SUSE-SU-2017:1770-1)).

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 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (101985) and SecurityFocus (BID 98905†). The entries VDB-102118, VDB-102641, VDB-102643 and VDB-102644 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 101985
Nessus Name: Debian DSA-3920-1 : qemu - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703920
OpenVAS Name: Debian Security Advisory DSA 3920-1 (qemu - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: d710e1e7bd3d5bfc26b631f02ae87901ebe646b0

Timelineinfo

02/08/2017 🔍
06/02/2017 +114 days 🔍
06/06/2017 +4 days 🔍
06/16/2017 +10 days 🔍
06/16/2017 +0 days 🔍
06/17/2017 +1 days 🔍
07/25/2017 +38 days 🔍
07/27/2017 +2 days 🔍
12/08/2022 +1960 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: RHSA-2017:2392
Researcher: Li Qiang
Organization: Qihoo 360
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-9374 (🔍)
GCVE (CVE): GCVE-0-2017-9374
GCVE (VulDB): GCVE-100-102642

OVAL: 🔍

SecurityFocus: 98905 - QEMU CVE-2017-9374 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 06/17/2017 10:58
Updated: 12/08/2022 14:58
Changes: 06/17/2017 10:58 (77), 10/18/2019 20:42 (6), 12/08/2022 14:58 (5)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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