VDB-87601 · CVE-2016-4037 · BID 86283

QEMU hw/usb/hcd-ehci.c ehci_advance_state input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

A vulnerability has been found in QEMU (Virtualization Software) (the affected version unknown) and classified as critical. Affected by this vulnerability is the function ehci_advance_state of the file hw/usb/hcd-ehci.c. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 05/23/2016 by Qinghao Tang (Website). The advisory is shared at lists.gnu.org. This vulnerability is known as CVE-2016-4037 since 04/18/2016. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, 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). Entries connected to this vulnerability are available at 81088, 81198, 81711 and 82912.

Productinfo

Type

Name

License

  • open-source

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

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

NVD Base Score: 6.0
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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: 1ae3f2f178087711f9591350abad133525ba93f2

Timelineinfo

04/18/2016 🔍
04/18/2016 +0 days 🔍
04/30/2016 +12 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: FEDORA-2016-75063477ca
Researcher: Qinghao Tang
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4037 (🔍)
SecurityFocus: 86283 - QEMU CVE-2016-4037 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 05/24/2016 11:55 AM
Updated: 08/22/2022 08:42 AM
Changes: 05/24/2016 11:55 AM (61), 12/12/2018 10:11 AM (16), 08/22/2022 08:38 AM (6), 08/22/2022 08:42 AM (1)
Complete: 🔍

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