QEMU MegaRAID SAS 8708EM2 Host Bus Adapter Emulation null pointer dereference

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

Summaryinfo

A vulnerability labeled as problematic has been found in QEMU. This vulnerability affects unknown code of the component MegaRAID SAS 8708EM2 Host Bus Adapter Emulation. Such manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2017-9503. An attack has to be approached locally. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in QEMU (Virtualization Software) (the affected version unknown). It has been rated as problematic. Affected by this issue is an unknown part of the component MegaRAID SAS 8708EM2 Host Bus Adapter Emulation. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. CVE summarizes:

QEMU (aka Quick Emulator), when built with MegaRAID SAS 8708EM2 Host Bus Adapter emulation support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors involving megasas command processing.

The bug was discovered 06/08/2017. The weakness was shared 06/16/2017 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2017-9503 since 06/07/2017. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 101758 (openSUSE Security Update : qemu (openSUSE-2017-822)), 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 170139 (SUSE Enterprise Linux Security Update for xen (SUSE-SU-2017:1770-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (101758) and SecurityFocus (BID 99010†). The entries VDB-102118 and VDB-102642 are related to this item. Once again VulDB remains the best source for 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: Null pointer dereference
CWE: CWE-476 / 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: 101758
Nessus Name: openSUSE Security Update : qemu (openSUSE-2017-822)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850584
OpenVAS Name: SuSE Update for qemu openSUSE-SU-2017:1872-1 (qemu)
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: 🔍

Timelineinfo

06/07/2017 🔍
06/08/2017 +1 days 🔍
06/08/2017 +0 days 🔍
06/16/2017 +8 days 🔍
06/16/2017 +0 days 🔍
06/17/2017 +1 days 🔍
07/14/2017 +27 days 🔍
07/17/2017 +3 days 🔍
12/08/2022 +1970 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: DLA 1497-1
Researcher: Zhangyanyu
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-9503 (🔍)
GCVE (CVE): GCVE-0-2017-9503
GCVE (VulDB): GCVE-100-102644
SecurityFocus: 99010 - QEMU CVE-2017-9503 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 06/17/2017 10:58
Updated: 12/08/2022 15:04
Changes: 06/17/2017 10:58 (74), 10/18/2019 20:50 (5), 12/29/2020 07:18 (2), 12/08/2022 15:04 (3)
Complete: 🔍
Cache ID: 216::103

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