QEMU VGA Command hw/display/vmware_vga.c vmsvga_fifo_run resource management
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.0 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, has been found in QEMU (Virtualization Software) (the affected version is unknown). This issue affects the function vmsvga_fifo_run
of the file hw/display/vmware_vga.c of the component VGA Command Handler. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
The vmsvga_fifo_run function in hw/display/vmware_vga.c in QEMU allows local OS guest administrators to cause a denial of service (infinite loop and QEMU process crash) via a VGA command.
The weakness was disclosed 06/01/2016 by Li Qiang with 360.cn Inc. (Website). It is possible to read the advisory at lists.gnu.org. The identification of this vulnerability is CVE-2016-4453 since 05/02/2016. The exploitation is known to be easy. Attacking locally is a requirement. A simple authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.
The vulnerability scanner Nessus provides a plugin with the ID 94758 (SUSE SLES12 Security Update : qemu (SUSE-SU-2016:2781-1)), 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 176848 (Debian Security Update for qemu (DLA 1599-1)).
Upgrading eliminates this vulnerability. A possible mitigation has been published 6 months after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (94758). The entries 81088, 81198, 81711 and 82912 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: 6.1VulDB Meta Temp Score: 6.0
VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 4.4
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
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: 94758
Nessus Name: SUSE SLES12 Security Update : qemu (SUSE-SU-2016:2781-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 863050
OpenVAS Name: Fedora Update for qemu FEDORA-2016-73853a7a16
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
05/02/2016 🔍05/30/2016 🔍
06/01/2016 🔍
06/01/2016 🔍
06/02/2016 🔍
11/11/2016 🔍
11/14/2016 🔍
08/22/2022 🔍
Sources
Product: qemu.orgAdvisory: USN-3047-1
Researcher: Li Qiang
Organization: 360.cn Inc.
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2016-4453 (🔍)
SecurityFocus: 90928 - QEMU CVE-2016-4453 Infinite Loop Denial of Service Vulnerability
See also: 🔍
Entry
Created: 06/02/2016 13:24Updated: 08/22/2022 17:26
Changes: 06/02/2016 13:24 (65), 12/27/2018 11:28 (16), 08/22/2022 17:26 (3)
Complete: 🔍
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