CVE-2021-3759 — Uncontrolled Resource Consumption in Linux
Severity
5.5MEDIUMNVD
OSV7.8OSV7.1OSV6.5
EPSS
0.0%
top 95.12%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedAug 23
Latest updateJun 15
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages3 packages
Also affects: Debian Linux 10.0
🔴Vulnerability Details
8GHSA▶
GHSA-4hgp-5v89-5fhw: 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↗2022-08-24
OSV▶
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↗2022-08-23
OSV▶
linux-bluefield, linux-gke-5.4, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities↗2021-11-11
OSV▶
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities↗2021-11-09
OSV▶
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-kvm vulnerabilities↗2021-11-09