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.
7.7	$0-$5k	0.00

A vulnerability, which was classified as critical, was found in QEMU (Virtualization Software) (affected version not known). Affected is the function stellaris_enet_receive of the file hw/net/stellaris_enet.c of the component Stellaris ethernet Controller. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in the stellaris_enet_receive function in hw/net/stellaris_enet.c in QEMU, when the Stellaris ethernet controller is configured to accept large packets, allows remote attackers to cause a denial of service (QEMU crash) via a large packet.

The weakness was published 05/23/2016 with Intel (Website). The advisory is shared for download at lists.gnu.org. This vulnerability is traded as CVE-2016-4001 since 04/12/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 90814 (Fedora 22 : xen-4.5.3-2.fc22 (2016-75063477ca)), 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 176848 (Debian Security Update for qemu (DLA 1599-1)).

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 vulnerability database at Tenable (90814). Similar entries are available at 81088, 81198, 81711 and 82912.

Productinfo

Type

• Virtualization Software

Name

• QEMU

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.7

VulDB Base Score: 9.0
VulDB Temp Score: 8.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
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: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

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: 90814
Nessus Name: Fedora 22 : xen-4.5.3-2.fc22 (2016-75063477ca)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802147
OpenVAS Name: Fedora Update for xen FEDORA-2016-35
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: 3a15cc0e1ee7168db0782133d2607a6bfa422d66

Timelineinfo

04/11/2016 🔍
04/12/2016 +1 days 🔍
04/30/2016 +18 days 🔍
05/02/2016 +2 days 🔍
05/23/2016 +21 days 🔍
05/23/2016 +0 days 🔍
05/24/2016 +1 days 🔍
08/22/2022 +2281 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: USN-2974-1
Organization: Intel
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4001 (🔍)
SecurityFocus: 85976 - QEMU 'stellaris_enet_receive()' Function Remote Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 05/24/2016 11:54
Updated: 08/22/2022 08:34
Changes: 05/24/2016 11:54 (63), 12/12/2018 10:11 (15), 08/22/2022 08:34 (6)
Complete: 🔍
Cache ID: 3:94F

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