virglrenderer vrend_renderer.c vrend_create_vertex_elements_state resource management
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.0 | $0-$5k | 0.00 |
A vulnerability was found in virglrenderer (version unknown). It has been declared as problematic. Affected by this vulnerability is the function vrend_create_vertex_elements_state
of the file vrend_renderer.c. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:
Memory leak in the vrend_create_vertex_elements_state function in vrend_renderer.c in virglrenderer allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRGL_OBJECT_VERTEX_ELEMENTS commands.
The bug was discovered 03/01/2017. The weakness was released 03/15/2017 by Li Qiang with 360.cn Inc. (oss-sec). The advisory is shared at openwall.com. This vulnerability is known as CVE-2017-6386 since 02/28/2017. 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 was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 97913 (SUSE SLED12 / SLES12 Security Update : virglrenderer (SUSE-SU-2017:0798-1)), 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 169822 (SUSE Enterprise Linux Security Update for virglrenderer (SUSE-SU-2017:0798-1)).
Upgrading eliminates this vulnerability. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (97913). Entries connected to this vulnerability are available at 97793, 97950, 98124 and 98149.
Product
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 5.2VulDB Meta Temp Score: 5.1
VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.5
NVD Vector: 🔍
CVSSv2
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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: 🔍
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Nessus ID: 97913
Nessus Name: SUSE SLED12 / SLES12 Security Update : virglrenderer (SUSE-SU-2017:0798-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
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Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
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Timeline
02/28/2017 🔍03/01/2017 🔍
03/01/2017 🔍
03/15/2017 🔍
03/15/2017 🔍
03/16/2017 🔍
03/22/2017 🔍
03/23/2017 🔍
09/09/2020 🔍
Sources
Advisory: openwall.comResearcher: Li Qiang
Organization: 360.cn Inc.
Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-6386 (🔍)
SecurityFocus: 96506 - Virglrenderer CVE-2017-6386 Denial of Service Vulnerability
OSVDB: - CVE-2017-6386 - virglrenderer - Denial of Service Issue
See also: 🔍
Entry
Created: 03/16/2017 13:42Updated: 09/09/2020 09:44
Changes: 03/16/2017 13:42 (74), 09/09/2020 09:44 (4)
Complete: 🔍
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