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CVE-2021-3679

CVSS v3.1 5.5 (Medium)
55% Progress
CVSS v2.0 2.1 (Low)
21% Progress
EPSS 0.04 % (5th)
0.04% Progress
Affected Products 3
Advisories 39
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.

Weaknesses
CWE-400
Uncontrolled Resource Consumption
CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')
CVE Status
PUBLISHED
CNA
Red Hat, Inc.
Published Date
2021-08-05 20:15:09
(3 years ago)
Updated Date
2022-10-27 12:29:42
(23 months ago)

Affected Products

Debian

Linux

Redhat

Configuration #1

    CPE23 From Up To
  Linux Kernel prior 5.14 version cpe:2.3:o:linux:linux_kernel < 5.14
  Linux Kernel 5.14 cpe:2.3:o:linux:linux_kernel:5.14:-
  Linux Kernel 5.14 Rc1 cpe:2.3:o:linux:linux_kernel:5.14:rc1
  Linux Kernel 5.14 Rc2 cpe:2.3:o:linux:linux_kernel:5.14:rc2

Configuration #2

    CPE23 From Up To
  Redhat Enterprise Linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-

Configuration #3

    CPE23 From Up To
  Debian Linux 9.0 cpe:2.3:o:debian:debian_linux:9.0
  Debian Linux 10.0 cpe:2.3:o:debian:debian_linux:10.0