QEMU virtio-gpu-3d.c virgl_cmd_resource_unref resource management

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability was found in QEMU. It has been declared as problematic. Impacted is the function virgl_cmd_resource_unref of the file hw/display/virtio-gpu-3d.c. The manipulation results in resource management. This vulnerability is reported as CVE-2017-5857. The attack requires a local approach. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in QEMU (Virtualization Software) (version now known). Affected is the function virgl_cmd_resource_unref of the file hw/display/virtio-gpu-3d.c. 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:

Memory leak in the virgl_cmd_resource_unref function in hw/display/virtio-gpu-3d.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRTIO_GPU_CMD_RESOURCE_UNREF commands sent without detaching the backing storage beforehand.

The bug was discovered 02/01/2017. The weakness was disclosed 03/16/2017 by Li Qiang with 360.cn Inc. (oss-sec). The advisory is available at openwall.com. This vulnerability is traded as CVE-2017-5857 since 02/01/2017. Local access is required to approach this attack. Required for exploitation is a authentication. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 97271 (GLSA-201702-28 : QEMU: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276537 (Fedora Security Update for qemu (FEDORA-2017-62ac1230f7)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.qemu-project.org. 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 (97271) and SecurityFocus (BID 95993†). The entries VDB-98151, VDB-98123, VDB-98146 and VDB-98147 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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License

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
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: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97271
Nessus Name: GLSA-201702-28 : QEMU: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for qemu FEDORA-2017-62ac1230f7
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.qemu-project.org

Timelineinfo

01/23/2017 🔍
02/01/2017 +9 days 🔍
02/01/2017 +0 days 🔍
02/21/2017 +20 days 🔍
02/21/2017 +0 days 🔍
03/16/2017 +23 days 🔍
03/16/2017 +0 days 🔍
03/17/2017 +1 days 🔍
09/09/2020 +1272 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: openwall.com
Researcher: Li Qiang
Organization: 360.cn Inc.
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-5857 (🔍)
GCVE (CVE): GCVE-0-2017-5857
GCVE (VulDB): GCVE-100-98202
SecurityFocus: 95993 - QEMU 'virtio-gpu-3d.c' Denial of Service Vulnerability
OSVDB: - CVE-2017-5857 - QEMU - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 03/17/2017 07:52
Updated: 09/09/2020 13:04
Changes: 03/17/2017 07:52 (69), 09/09/2020 13:04 (13)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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