virglrenderer up to 0.5.x vrend_blitter.c vrend_renderer_init_blit_ctx resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in virglrenderer up to 0.5.x. Affected by this vulnerability is the function vrend_renderer_init_blit_ctx of the file vrend_blitter.c. The manipulation leads to resource management. This vulnerability is listed as CVE-2017-5993. The attack must be carried out locally. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in virglrenderer up to 0.5.x. It has been rated as problematic. This issue affects the function vrend_renderer_init_blit_ctx of the file vrend_blitter.c. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

Memory leak in the vrend_renderer_init_blit_ctx function in vrend_blitter.c in virglrenderer before 0.6.0 allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRGL_CCMD_BLIT commands.

The bug was discovered 02/15/2017. The weakness was presented 03/15/2017 by Li Qiang with 360.cn Inc. (oss-sec). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2017-5993 since 02/15/2017. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 28 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 to version 0.6.0 eliminates this vulnerability. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97913) and SecurityFocus (BID 96275†). See VDB-97793, VDB-97950, VDB-98124 and VDB-98149 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB 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: 🔍

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: 97913
Nessus Name: SUSE SLED12 / SLES12 Security Update : virglrenderer (SUSE-SU-2017:0798-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: virglrenderer 0.6.0

Timelineinfo

02/15/2017 🔍
02/15/2017 +0 days 🔍
02/17/2017 +2 days 🔍
03/15/2017 +26 days 🔍
03/15/2017 +0 days 🔍
03/16/2017 +1 days 🔍
03/22/2017 +6 days 🔍
03/23/2017 +1 days 🔍
09/08/2020 +1265 days 🔍

Sourcesinfo

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

CVE: CVE-2017-5993 (🔍)
GCVE (CVE): GCVE-0-2017-5993
GCVE (VulDB): GCVE-100-98153
SecurityFocus: 96275 - Virglrenderer CVE-2017-5993 Denial of Service Vulnerability
OSVDB: - CVE-2017-5993 - virglrenderer - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 03/16/2017 13:39
Updated: 09/08/2020 16:33
Changes: 03/16/2017 13:39 (77), 09/08/2020 16:33 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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