Google gVisor prior 2018-08-22 Pagetable Crafted Application input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Google gVisor and classified as problematic. Affected is an unknown function of the component Pagetable Handler. Such manipulation as part of Crafted Application leads to input validation. This vulnerability is documented as CVE-2018-20168. The attack needs to be performed locally. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Google gVisor. It has been rated as problematic. Affected by this issue is an unknown code of the component Pagetable Handler. The manipulation as part of a Crafted Application leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:

Google gVisor before 2018-08-22 reuses a pagetable in a different level with the paging-structure cache intact, which allows attackers to cause a denial of service ("physical address not valid" panic) via a crafted application.

The bug was discovered 09/27/2018. The weakness was released 12/17/2018 (Website). The advisory is available at bugs.chromium.org. This vulnerability is handled as CVE-2018-20168 since 12/16/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading to version 2018-08-22 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

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Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: gVisor 2018-08-22

Timelineinfo

08/22/2018 🔍
09/27/2018 +36 days 🔍
12/16/2018 +80 days 🔍
12/17/2018 +1 days 🔍
12/17/2018 +0 days 🔍
12/17/2018 +0 days 🔍
04/21/2020 +491 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: bugs.chromium.org
Status: Not defined

CVE: CVE-2018-20168 (🔍)
GCVE (CVE): GCVE-0-2018-20168
GCVE (VulDB): GCVE-100-128006

Entryinfo

Created: 12/17/2018 09:13
Updated: 04/21/2020 09:45
Changes: 12/17/2018 09:13 (58), 04/21/2020 09:45 (1)
Complete: 🔍
Cache ID: 216::103

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