PT-2021-7856 · Linux+8 · Linux Kernel+8
Yutian Yang
·
Published
2021-07-15
·
Updated
2024-06-15
·
CVE-2021-3759
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A memory overflow issue was found in the Linux kernel's ipc functionality of the memcg subsystem. This occurs when a user calls the
semget function multiple times, creating semaphores, due to a lack of control over the allocation of resources. The flaw allows a local user to consume all available resources, leading to a denial of service. The primary threat posed by this issue is to system availability.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Allocation of Resources Without Limits
Resource Exhaustion
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Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linuxmint
Linux Kernel
Red Hat
Rocky Linux
Suse
Ubuntu