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-2023-3640 Kernel: x86/mm: a per-cpu entry area leak was identified through the init_cea_offsets function when prefetchnta and prefetcht2 instructions being used for the per-cpu entry area mapping to the user space

🗓️ 24 Jul 2023 15:19:29Reported by redhatType 
cvelist
 cvelist🔗 www.cve.org👁 37 Views

CVE-2023-3640 Kernel x86/mm per-cpu entry area leak in Linux kerne

Related
Affected
Refs
ReporterTitlePublishedViews
Family
GithubExploit		Exploit for Observable Discrepancy in Linux Linux_Kernel
20 Jun 202306:21
–githubexploit
BDU FSTEC		The vulnerability of the init_cea_offsets() function in the /arch/x86/mm/cpuEntryArea.c file of the Linux kernel’s memory management subsystem allows a attacker to access protected information and enhance their privileges.
24 Jul 202300:00
–bdu_fstec
Chainguard		CVE-2023-3640 vulnerabilities
9 Jan 202619:17
–cgr
Circl		CVE-2023-3640
12 Jul 202317:29
–circl
CNNVD		Linux kernel 安全漏洞
24 Jul 202300:00
–cnnvd
CVE		CVE-2023-3640
24 Jul 202315:19
–cve
Debian CVE		CVE-2023-3640
24 Jul 202315:19
–debiancve
EUVD		EUVD-2023-44284
3 Oct 202520:07
–euvd
NVD		CVE-2023-3640
24 Jul 202316:15
–nvd
OSV		CGA-FWWG-5XV9-V2QJ
7 Jan 202613:00
–osv
Rows per page
[
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "kernel",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:5.14.0-362.8.1.el9_3",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9::realtime",
      "cpe:/a:redhat:enterprise_linux:9::crb",
      "cpe:/a:redhat:enterprise_linux:9::appstream",
      "cpe:/a:redhat:enterprise_linux:9::nfv",
      "cpe:/o:redhat:enterprise_linux:9::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "kernel",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:5.14.0-362.8.1.el9_3",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9::realtime",
      "cpe:/a:redhat:enterprise_linux:9::crb",
      "cpe:/a:redhat:enterprise_linux:9::appstream",
      "cpe:/a:redhat:enterprise_linux:9::nfv",
      "cpe:/o:redhat:enterprise_linux:9::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 6",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "kernel",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:6"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 7",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "kernel",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:7"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 7",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "kernel-rt",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:7"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "kernel",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:8"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "kernel-rt",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:8"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "kernel-rt",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:9"
    ]
  }
]

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
14 Nov 2025 14:20Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.17
EPSS0.00162
CWE-203
cve-2023-3640kernelx86/mmper-cpu entry areamemory access flawlinuxunauthorized accesskaslrprivilege escalationsecurity issue
37