CVE-2021-3759

Public on 2022-08-23
Modified on 2024-01-14
Description
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.
Severity
Medium severity
Medium
CVSS v3 Base Score
5.5
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-12-01 ALAS2KERNEL-5.10-2022-023 Fixed
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-12-01 ALAS2KERNEL-5.4-2022-039 Fixed
Amazon Linux 1 kernel-4.14 No Fix Planned
Amazon Linux 2 - Core kernel-4.14 Pending Fix
Amazon Linux 2 - Core kernel-5.10 Pending Fix
Amazon Linux 2 - Core kernel-5.4 Pending Fix

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H