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

CVE-2021-47221

🗓️ 21 May 2024 15:15:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve🔗 ubuntu.com👁 25 Views

In the Linux kernel, the vulnerability in mm/slub has been fixed, preventing redzoning corruption caused by freelist pointer

Related
Packages
Refs
ReporterTitlePublishedViews
Family
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2022-002 (ALASKERNEL-5.10-2022-002)
2 May 202200:00
–nessus
Tenable Nessus		RHEL 8 : kernel (RHSA-2023:2951)
17 May 202300:00
–nessus
Tenable Nessus		Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987014)
7 Oct 202500:00
–nessus
Tenable Nessus		Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989714)
5 Nov 202500:00
–nessus
Tenable Nessus		Linux Distros Unpatched Vulnerability : CVE-2021-47221
5 Mar 202500:00
–nessus
Amazon		Important: kernel
28 Jan 202200:00
–amazon
AstraLinux		Astra Linux – Vulnerability in Linux 5.10
19 Jun 202611:10
–astralinux
BDU FSTEC		The vulnerability of the calculate_sizes() function in the mm/slub.c module of the Linux kernel’s memory management subsystem allows a hacker to cause a service failure.
5 Nov 202500:00
–bdu_fstec
CNNVD		Linux kernel 安全漏洞
21 May 202400:00
–cnnvd
CVE		CVE-2021-47221
21 May 202414:19
–cve
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu16.04anylinux-hwe0linux-hwe_0_any.deb
Ubuntu18.04anylinux-hwe-5.40linux-hwe-5.4_0_any.deb
Ubuntu18.04anylinux0linux_0_any.deb
Ubuntu20.04anylinux0linux_0_any.deb
Ubuntu16.04anylinux0linux_0_any.deb
Ubuntu18.04anylinux-kvm0linux-kvm_0_any.deb
Ubuntu20.04anylinux-kvm0linux-kvm_0_any.deb
Ubuntu16.04anylinux-kvm0linux-kvm_0_any.deb
Ubuntu18.04anylinux-aws-5.40linux-aws-5.4_0_any.deb
Ubuntu16.04anylinux-aws-hwe0linux-aws-hwe_0_any.deb
Rows per page

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
22 May 2026 23:49Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.15.5
EPSS0.00222
SSVC
linux kernelslub vulnerabilityredzoningfreelist pointercorruption prevention
25