Lucene search
K
Catalog
Vendors
Products
Timeline
Vulnerabilities
Sources
Documentation
Blog
Glossary
FAQ
Brand assets
Assessment
Agents dashboard
Agent Scanning
API Scanning
Assessment API
Alerts
Email notifications
Webhook notifications
Alerts API
SBOM package analysis
API Reference
Support
Settings
Sign in

A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.

🗓️ 25 Sep 2020 07:00:00Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 1 Views

Linux Kernel prctl flaw before 5.8-rc1 enables indirect speculation after disable, misreports as force disabled, enabling Spectre version two.

Related
Detection
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: There are multiple vulnerabilities in the Linux Kernel used in IBM Elastic Storage System
25 May 202223:01
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in jQuery, Spring, Dom4j, MongoDB, Linux Kernel, Targetcli-fb, Jackson, Node.js, and Apache Commons affect IBM Spectrum Protect Plus
20 Nov 202020:41
–ibm
ATTACKERKB		CVE-2018-3639
22 May 201800:00
–attackerkb
Tenable Nessus		Amazon Linux 2 : kernel (ALAS-2020-1465)
23 Jul 202000:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-013)
2 May 202200:00
–nessus
Tenable Nessus		Amazon Linux AMI : kernel (ALAS-2020-1401)
20 Jul 202000:00
–nessus
Tenable Nessus		Debian DLA-2323-1 : linux-4.19 new package
13 Aug 202000:00
–nessus
Tenable Nessus		EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1807)
30 Jul 202000:00
–nessus
Tenable Nessus		EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-1892)
28 Aug 202000:00
–nessus
Tenable Nessus		EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1958)
8 Sep 202000:00
–nessus
Rows per page
Vulners
Node
microsoftcm1_kernel_5.4.91-3Range<5.4.91-3

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

Book a live demo
25 Sep 2020 07:00Current
7High risk
Vulners AI Score7
CVSS 22.1
CVSS 3.15.5
EPSS0.00033
linux kernelprctl flawindirect speculationspectre version twoconfidentiality impact
1