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CVE-2021-3679 Detail

Description

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1989165 Issue Tracking  Patch  Third Party Advisory 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=67f0d6d9883c13174669f88adac4f0ee656cc16a Mailing List  Patch  Vendor Advisory 
https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html Mailing List  Third Party Advisory 
https://www.debian.org/security/2021/dsa-4978 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop') cwe source acceptance level NIST  
CWE-400 Uncontrolled Resource Consumption Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

8 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-3679
NVD Published Date:
08/05/2021
NVD Last Modified:
10/27/2022
Source:
Red Hat, Inc.