virglrenderer up to 0.5.x Array Access vrend_renderer.c vrend_create_vertex_elements_state num_elements memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in virglrenderer up to 0.5.x. Affected by this issue is the function vrend_create_vertex_elements_state of the file vrend_renderer.c of the component Array Access. The manipulation of the argument num_elements results in memory corruption. This vulnerability is cataloged as CVE-2017-5994. The attack must be initiated from a local position. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in virglrenderer up to 0.5.x. Affected is the function vrend_create_vertex_elements_state of the file vrend_renderer.c of the component Array Access. The manipulation of the argument num_elements with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in the vrend_create_vertex_elements_state function in vrend_renderer.c in virglrenderer before 0.6.0 allows local guest OS users to cause a denial of service (out-of-bounds array access and crash) via the num_elements parameter.

The bug was discovered 02/15/2017. The weakness was shared 03/15/2017 by Li Qiang with 360.cn Inc. (oss-sec). The advisory is available at openwall.com. This vulnerability is traded as CVE-2017-5994 since 02/15/2017. The exploitability is told to be easy. 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 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 96276†). The entries VDB-97793, VDB-97950, VDB-98124 and VDB-98149 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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-2017-5994 (🔍)
GCVE (CVE): GCVE-0-2017-5994
GCVE (VulDB): GCVE-100-98154
SecurityFocus: 96276 - Virglrenderer CVE-2017-5994 Denial of Service Vulnerability
OSVDB: - CVE-2017-5994 - virglrenderer - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 03/16/2017 13:39
Updated: 09/08/2020 16:53
Changes: 03/16/2017 13:39 (79), 09/08/2020 16:53 (3)
Complete: 🔍
Cache ID: 216:68E:103

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

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