Intel i915 Graphics up to 4.x on Linux Kernel Mode Driver input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Intel i915 Graphics up to 4.x on Linux. It has been declared as critical. This vulnerability affects unknown code of the component Kernel Mode Driver. The manipulation results in input validation. This vulnerability is cataloged as CVE-2019-11085. The attack must be initiated from a local position. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Intel i915 Graphics up to 4.x on Linux. It has been classified as critical. Affected is some unknown processing of the component Kernel Mode Driver. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Insufficient input validation in Kernel Mode Driver in Intel(R) i915 Graphics for Linux before version 5.0 may allow an authenticated user to potentially enable escalation of privilege via local access.

The bug was discovered 05/14/2019. The weakness was shared 05/17/2019 by Alex (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2019-11085 since 04/11/2019. The attack needs to be approached locally. Required for exploitation is a authentication. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 172478 (SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2019:1536-1) (Sad SACK)).

Upgrading to version 5.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 106478†). The entries VDB-128716, VDB-132474, VDB-133999 and VDB-134037 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: i915 Graphics 5.0

Timelineinfo

01/07/2019 🔍
04/11/2019 +94 days 🔍
05/14/2019 +33 days 🔍
05/17/2019 +3 days 🔍
05/18/2019 +1 days 🔍
09/21/2023 +1587 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: RHSA-2019:1873⛔
Researcher: Alex
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-11085 (🔍)
GCVE (CVE): GCVE-0-2019-11085
GCVE (VulDB): GCVE-100-135204
SecurityFocus: 106478 - Linux Kernel 'mm/mincore.c' Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 05/18/2019 09:19
Updated: 09/21/2023 21:08
Changes: 05/18/2019 09:19 (62), 06/13/2020 15:15 (6), 09/21/2023 21:08 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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