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CVE-2021-3979 Detail

Description

A key length flaw was found in Red Hat Ceph Storage. An attacker can exploit the fact that the key length is incorrectly passed in an encryption algorithm to create a non random key, which is weaker and can be exploited for loss of confidentiality and integrity on encrypted disks.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  6.5 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/security/cve/CVE-2021-3979 Vendor Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2024788 Issue Tracking  Vendor Advisory 
https://github.com/ceph/ceph/commit/47c33179f9a15ae95cc1579a421be89378602656 Patch  Third Party Advisory 
https://github.com/ceph/ceph/pull/44765 Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPOK44BESMIFW6BIOGCN452AKKOIIT6Q/ Mailing List 
https://tracker.ceph.com/issues/54006 Issue Tracking  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-287 Improper Authentication cwe source acceptance level NIST  
CWE-327 Use of a Broken or Risky Cryptographic Algorithm Contributor acceptance level Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Denotes Vulnerable Software
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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-3979
NVD Published Date:
08/25/2022
NVD Last Modified:
10/23/2023
Source:
Red Hat, Inc.