QEMU e1000 NIC Emulation resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

A vulnerability, which was classified as problematic, was found in QEMU (Virtualization Software) (affected version not known). This affects some unknown functionality of the component e1000 NIC Emulation. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

QEMU (aka Quick Emulator) built with the e1000 NIC emulation support is vulnerable to an infinite loop issue. It could occur while processing data via transmit or receive descriptors, provided the initial receive/transmit descriptor head (TDH/RDH) is set outside the allocated descriptor buffer. A privileged user inside guest could use this flaw to crash the QEMU instance resulting in DoS.

The bug was discovered 01/21/2016. The weakness was shared 12/29/2016 by Prasad J Pandit (Website). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2016-1981 since 01/21/2016. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 18 days. During that time the estimated underground price was around $5k-$25k. 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)).

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 databases at Tenable (88628) and SecurityFocus (BID 81549†). The entries VDB-80761, VDB-80762, VDB-87595 and VDB-94714 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.8
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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: 703471
OpenVAS Name: Debian Security Advisory DSA 3471-1 (qemu - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/21/2016 🔍
01/21/2016 +0 days 🔍
01/21/2016 +0 days 🔍
02/08/2016 +18 days 🔍
02/09/2016 +1 days 🔍
12/29/2016 +324 days 🔍
12/29/2016 +0 days 🔍
12/30/2016 +1 days 🔍
10/12/2022 +2112 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: RHSA-2016:2585
Researcher: Prasad J Pandit
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-1981 (🔍)
GCVE (CVE): GCVE-0-2016-1981
GCVE (VulDB): GCVE-100-94719
SecurityFocus: 81549 - QEMU CVE-2016-1981 Multiple Denial of Service Vulnerabilities

See also: 🔍

Entryinfo

Created: 12/30/2016 10:29 AM
Updated: 10/12/2022 11:35 PM
Changes: 12/30/2016 10:29 AM (51), 07/22/2019 06:43 AM (18), 10/12/2022 11:26 PM (2), 10/12/2022 11:35 PM (10)
Complete: 🔍
Cache ID: 18:5A9:40

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