QEMU 8.0 IDE AHCI 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 was found in QEMU 8.0. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the component IDE AHCI Emulation. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2017-9373. The attack needs to be performed locally. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in QEMU 8.0 (Virtualization Software) and classified as problematic. This issue affects an unknown function of the component IDE AHCI Emulation. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

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

The bug was discovered 06/05/2017. The weakness was released 06/16/2017 by Li Qiang with Qihoo 360 (oss-sec). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2017-9373 since 06/02/2017. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 11 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 176099 (Debian Security Update for qemu (DSA 3920-1)).

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 98921†). Entries connected to this vulnerability are available at VDB-102642, VDB-102643, VDB-103036 and VDB-103283. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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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: d68f0f778e7f4fbd674627274267f269e40f0b04

Timelineinfo

06/02/2017 🔍
06/05/2017 +3 days 🔍
06/05/2017 +0 days 🔍
06/16/2017 +11 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-2017-9373 (🔍)
GCVE (CVE): GCVE-0-2017-9373
GCVE (VulDB): GCVE-100-102641

OVAL: 🔍

SecurityFocus: 98921 - QEMU CVE-2017-9373 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 06/17/2017 10:57
Updated: 12/08/2022 14:54
Changes: 06/17/2017 10:57 (82), 10/18/2019 20:39 (2), 12/08/2022 14:54 (5)
Complete: 🔍
Cache ID: 216::103

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

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