Description
A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.
Published: 2022-03-03
Score: 4.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2940-1 linux security update
Debian DLA Debian DLA DLA-2941-1 linux-4.19 security update
Debian DSA Debian DSA DSA-5096-1 linux security update
EUVD EUVD EUVD-2021-33909 A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.
Ubuntu USN Ubuntu USN USN-5206-1 Linux kernel (OEM) vulnerability
Ubuntu USN Ubuntu USN USN-5207-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-5208-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5209-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5210-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5211-1 Linux kernel vulnerability
Ubuntu USN Ubuntu USN USN-5218-1 Linux kernel (OEM) vulnerabilities
History

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Subscriptions

Debian Debian Linux
Fedoraproject Fedora
Linux Linux Kernel
Oracle Communications Cloud Native Core Binding Support Function Communications Cloud Native Core Network Exposure Function Communications Cloud Native Core Policy
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T17:16:03.279Z

Reserved: 2021-11-22T00:00:00.000Z

Link: CVE-2021-4002

cve-icon Vulnrichment

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cve-icon NVD

Status : Modified

Published: 2022-03-03T22:15:08.527

Modified: 2024-11-21T06:36:42.333

Link: CVE-2021-4002

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-11-25T00:00:00Z

Links: CVE-2021-4002 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses