CVE-2021-3759

A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2021-3759	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1999675	Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html	Mailing List Third Party Advisory
https://lore.kernel.org/linux-mm/1626333284-1404-1-git-send-email-nglaive%40gmail.com/

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

History

07 Nov 2023, 03:38

Type	Values Removed	Values Added
References	{'url': 'https://lore.kernel.org/linux-mm/1626333284-1404-1-git-send-email-nglaive@gmail.com/', 'name': 'https://lore.kernel.org/linux-mm/1626333284-1404-1-git-send-email-nglaive@gmail.com/', 'tags': ['Exploit', 'Mailing List', 'Vendor Advisory'], 'refsource': 'MISC'}	() https://lore.kernel.org/linux-mm/1626333284-1404-1-git-send-email-nglaive%40gmail.com/ -

10 Jul 2023, 19:02

Type	Values Removed	Values Added
CWE	~~CWE-400~~	CWE-770

Information

Published : 2022-08-23 16:15

Updated : 2024-02-28 19:29

NVD link : CVE-2021-3759

Mitre link : CVE-2021-3759

CVE.ORG link : CVE-2021-3759

JSON object : View

Products Affected

linux

linux_kernel

debian

debian_linux

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

CWE-400

Uncontrolled Resource Consumption

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