QEMU ColdFire Fast Ethernet Controller Emulator mcf_fec_receive resource management
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.3 | $0-$5k | 0.00 |
A vulnerability was found in QEMU (Virtualization Software) (unknown version). It has been classified as problematic. Affected is the function mcf_fec_receive
of the component ColdFire Fast Ethernet Controller Emulator. 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. CVE summarizes:
QEMU (aka Quick Emulator) built with the ColdFire Fast Ethernet Controller emulator support is vulnerable to an infinite loop issue. It could occur while receiving packets in 'mcf_fec_receive'. A privileged user/process inside guest could use this issue to crash the QEMU process on the host leading to DoS.
The bug was discovered 12/29/2016. The weakness was disclosed 12/29/2016 with Tencent (Website). The advisory is available at openwall.com. This vulnerability is traded as CVE-2016-9776 since 12/02/2016. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.
The vulnerability scanner Nessus provides a plugin with the ID 96529 (SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:0127-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276405 (Fedora Security Update for qemu (FEDORA-2017-b953d4d3a4)).
Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (96529). The entries 94671, 94672, 94674 and 94675 are pretty similar.
Product
Type
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 4.3
VulDB Base Score: 3.2
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
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Exploiting
Class: Resource managementCWE: CWE-399 / CWE-404
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 |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 96529
Nessus Name: SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:0127-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 867773
OpenVAS Name: Fedora Update for xen FEDORA-2017-d4ee7018c1
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
12/02/2016 🔍12/02/2016 🔍
12/29/2016 🔍
12/29/2016 🔍
12/29/2016 🔍
12/30/2016 🔍
01/13/2017 🔍
01/16/2017 🔍
10/13/2022 🔍
Sources
Product: qemu.orgAdvisory: DLA 1497-1
Organization: Tencent
Status: Not defined
Confirmation: 🔍
CVE: CVE-2016-9776 (🔍)
SecurityFocus: 94638 - QEMU '/hw/net/mcf_fec.c' Denial of Service Vulnerability
See also: 🔍
Entry
Created: 12/30/2016 10:29Updated: 10/13/2022 00:41
Changes: 12/30/2016 10:29 (53), 07/22/2019 06:59 (18), 10/13/2022 00:31 (2), 10/13/2022 00:41 (11)
Complete: 🔍
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