QEMU 2.9.0 megasas_mmio_write memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in QEMU 2.9.0 and classified as critical. Affected is the function megasas_mmio_write. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2017-8380. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in QEMU 2.9.0 (Virtualization Software). It has been rated as critical. Affected by this issue is the function megasas_mmio_write. 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 confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in the "megasas_mmio_write" function in Qemu 2.9.0 allows remote attackers to have unspecified impact via unknown vectors.

The bug was discovered 11/23/2017. The weakness was published 08/28/2017 with Tencent (Website). The advisory is available at lists.gnu.org. This vulnerability is handled as CVE-2017-8380 since 04/30/2017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 102008 (Fedora 25 : 2:qemu (2017-f941184db1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170142 (SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2017:1774-1)).

Upgrading eliminates this vulnerability. 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 (102008) and SecurityFocus (BID 98303†). Similar entries are available at VDB-98316, VDB-99556, VDB-100418 and VDB-100808. 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: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102008
Nessus Name: Fedora 25 : 2:qemu (2017-f941184db1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for qemu FEDORA-2017-f941184db1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/30/2017 🔍
05/03/2017 +3 days 🔍
07/25/2017 +83 days 🔍
07/27/2017 +2 days 🔍
08/28/2017 +32 days 🔍
08/28/2017 +0 days 🔍
08/29/2017 +1 days 🔍
11/23/2017 +86 days 🔍
12/16/2022 +1849 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: FEDORA-2017-f941184db1
Researcher: YY Z(Researcher) Wjjzhang
Organization: Tencent
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8380 (🔍)
GCVE (CVE): GCVE-0-2017-8380
GCVE (VulDB): GCVE-100-105830
SecurityFocus: 98303 - QEMU 'megasas_mmio_write()' Function Out-of-Bounds Read Vulnerability

See also: 🔍

Entryinfo

Created: 08/29/2017 10:40
Updated: 12/16/2022 19:55
Changes: 08/29/2017 10:40 (65), 11/11/2019 07:43 (13), 01/10/2021 07:40 (2), 12/16/2022 19:55 (3)
Complete: 🔍
Cache ID: 216:5CA:103

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