virglrenderer up to 0.5.x Gallium Driver tgsi_text.c parse_identifier memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in virglrenderer up to 0.5.x and classified as critical. This issue affects the function parse_identifier of the file tgsi_text.c of the component Gallium Driver. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2017-6209. The attack requires a local approach. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in virglrenderer up to 0.5.x. This affects the function parse_identifier of the file tgsi_text.c of the component Gallium Driver. The manipulation 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. The summary by CVE is:

Stack-based buffer overflow in the parse_identifier function in tgsi_text.c in the TGSI auxiliary module in the Gallium driver in virglrenderer before 0.6.0 allows local guest OS users to cause a denial of service (out-of-bounds array access and QEMU process crash) via vectors related to parsing properties.

The bug was discovered 02/24/2017. The weakness was disclosed 03/15/2017 by Li Qiang with 360.cn Inc. (oss-sec). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2017-6209 since 02/23/2017. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 19 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 96437†). The entries VDB-97793, VDB-97950, VDB-98124 and VDB-98149 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

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

CVSSv2info

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VulDB Base Score: 🔍
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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

02/23/2017 🔍
02/24/2017 +1 days 🔍
02/24/2017 +0 days 🔍
03/15/2017 +19 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-2017-6209 (🔍)
GCVE (CVE): GCVE-0-2017-6209
GCVE (VulDB): GCVE-100-98157
SecurityFocus: 96437 - Virglrenderer CVE-2017-6209 Stack Buffer Overflow Vulnerability
OSVDB: - CVE-2017-6209 - virglrenderer - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 03/16/2017 13:40
Updated: 09/08/2020 22:45
Changes: 03/16/2017 13:40 (66), 09/08/2020 22:45 (6)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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