CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

A vulnerability was found in QEMU (Virtualization Software) (the affected version unknown). It has been classified as problematic. This affects the function tx_consume of the component Rocker Switch Emulation. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on availability.

The bug was discovered 12/29/2015. The weakness was presented 12/29/2016 by Qinghao Tang with Qihoo 360 (Website). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2015-8701 since 12/29/2015. An attack has to be approached locally. A authentication is necessary for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 25 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 89526 (Fedora 23 : qemu-2.4.1-6.fc23 (2016-42778e8c82)), 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 124605 (Fedora Security Update for qemu (FEDORA-2016-42778e8c82)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (89526). See 94716, 94715 and 94714 for similar entries.

Productinfo

Type

• Virtualization Software

Name

• QEMU

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 3.8
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 89526
Nessus Name: Fedora 23 : qemu-2.4.1-6.fc23 (2016-42778e8c82)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802238
OpenVAS Name: Fedora Update for qemu FEDORA-2016-42778
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/29/2015 🔍
12/29/2015 +0 days 🔍
12/29/2015 +0 days 🔍
01/23/2016 +25 days 🔍
03/04/2016 +41 days 🔍
12/29/2016 +300 days 🔍
12/29/2016 +0 days 🔍
12/30/2016 +1 days 🔍
10/12/2022 +2112 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: FEDORA-2016-42778e8c82
Researcher: Qinghao Tang
Organization: Qihoo 360
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8701 (🔍)
SecurityFocus: 79706 - QEMU 'rocker.c' Stack Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 12/30/2016 10:28 AM
Updated: 10/12/2022 10:25 PM
Changes: 12/30/2016 10:28 AM (68), 07/21/2019 06:53 PM (12), 10/12/2022 10:25 PM (3)
Complete: 🔍

Discussion

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