CVE-2021-3759CWE-400CWE-770denial-of-service

CVE-2021-3759

Medium · published August 23, 2022

CVSS v3.1
5.5
EPSS
0%
Percentile
29.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00364 · 29.1th percentile
Weaknesses
CWE-400 · Uncontrolled Resource Consumption; CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2022-08-23T20:15Z
Affected products (2)
ProductVersionsFixed in
linux/linux_kernelall versions—
debian/debian_linuxall versions—
References (9)
https://access.redhat.com/security/cve/CVE-2021-3759 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=1999675 · [email protected]https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html · [email protected]https://lore.kernel.org/linux-mm/1626333284-1404-1-git-send-email-nglaive%40gmail.com/ · [email protected]https://access.redhat.com/security/cve/CVE-2021-3759 · af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1999675 · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html · af854a3a-2127-422b-91ae-364da2661108https://lore.kernel.org/linux-mm/1626333284-1404-1-git-send-email-nglaive%40gmail.com/ · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/html/ssa-794697.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 23 AUG 00:00Z
    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…
    cvelistv5