Fabrice Bellard QEMU AHCI Native Command Queue use after free

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

A vulnerability has been found in Fabrice Bellard QEMU (Virtualization Software) (affected version not known) and classified as critical. Affected by this vulnerability is some unknown functionality of the component AHCI Native Command Queue. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 01/28/2016 by Qinghao Tang as Bug 1288532 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2016-1568 since 01/09/2016. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 88628 (Debian DSA-3469-1 : 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 168962 (OpenSuSE Security Update for qemu (openSUSE-SU-2016:1750-1)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (110304), Tenable (88628), SecurityFocus (BID 80191†) and Vulnerability Center (SBV-56705†). Additional details are provided at lists.gnu.org.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.1

VulDB Base Score: 9.0
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

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Nessus ID: 88628
Nessus Name: Debian DSA-3469-1 : qemu - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for qemu FEDORA-2016-42778
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Patch: 4ab0359a8ae182a7ac5c99609667273167703fab

Timelineinfo

01/08/2016 🔍
01/08/2016 +0 days 🔍
01/09/2016 +0 days 🔍
01/28/2016 +19 days 🔍
02/02/2016 +5 days 🔍
02/07/2016 +5 days 🔍
02/08/2016 +1 days 🔍
02/21/2016 +13 days 🔍
04/11/2016 +49 days 🔍
07/06/2022 +2277 days 🔍

Sourcesinfo

Vendor: bellard.org

Advisory: Bug 1288532
Researcher: Qinghao Tang
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1568 (🔍)
X-Force: 110304 - QEMU AHCI Native Command Queuing privilege escalation
SecurityFocus: 80191 - QEMU CVE-2016-1568 Remote Code Execution Vulnerability
SecurityTracker: 1034859
Vulnerability Center: 56705 - QEMU Remote Code Execution Vulnerability in IDE AHCI Emulation, Medium

Misc.: 🔍

Entryinfo

Created: 02/02/2016 09:55 AM
Updated: 07/06/2022 05:21 PM
Changes: 02/02/2016 09:55 AM (68), 08/23/2018 08:19 AM (22), 07/06/2022 05:21 PM (6)
Complete: 🔍
Cache ID: 35:335:40

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