PT-2021-7856

CVE-2021-3759

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Published

2021-07-15

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Updated

2026-10-14

Description by

CVSS 4.0
6.8
Medium
MetricsAV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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.
Exploitability
Exploit
Impacts
Researchers
Vendors
Affected products
Related identifiers
ALSA-2022:1988
CESA-2022_1975
CESA-2022_1988
DLA-3244-1
OESA-2021-1453
OPENSUSE-SU-2021:1271-1
OPENSUSE-SU-2021_1271-1
OPENSUSE-SU-2021:3179-1
OPENSUSE-SU-2021_3179-1
OPENSUSE-SU-2021:3205-1
OPENSUSE-SU-2021_3205-1
OPENSUSE-SU-2021:3387-1
OPENSUSE-SU-2021_3387-1
OPENSUSE-SU-2021:3876-1
OPENSUSE-SU-2021_3876-1
OPENSUSE-SU-2024:10728-1
OPENSUSE-SU-2024:13704-1
RHSA-2022:1975
RHSA-2022_1975
RHSA-2022:1988
RHSA-2022_1988
RLSA-2022:1975
RLSA-2022:1988
SUSE-SU-2021:3177-1
SUSE-SU-2021:3178-1
SUSE-SU-2021:3179-1
SUSE-SU-2021:3192-1
SUSE-SU-2021:3205-1
SUSE-SU-2021:3205-2
SUSE-SU-2021:3206-1
SUSE-SU-2021:3207-1
SUSE-SU-2021:3217-1
SUSE-SU-2021:3387-1
SUSE-SU-2021:3415-1
SUSE-SU-2021:3876-1
SUSE-SU-2021:3972-1
USN-5115-1
USN-5117-1
USN-5120-1
USN-5135-1
USN-5136-1
USN-5137-1
USN-5137-2
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