CVE-2021-3979

MEDIUM

Red Hat Ceph Storage - Use of a Broken or Risky Cryptographic Algorithm

Title source: llm

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.

References (8)

Core 8

Core References

Mailing List vendor-advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPOK44BESMIFW6BIOGCN452AKKOIIT6Q/

Vendor Advisory

https://access.redhat.com/security/cve/CVE-2021-3979

Issue Tracking, Vendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2024788

Patch, Third Party Advisory

https://github.com/ceph/ceph/commit/47c33179f9a15ae95cc1579a421be89378602656

View Patch ZIP pw:eip

Patch, Third Party Advisory

https://github.com/ceph/ceph/pull/44765

Issue Tracking, Vendor Advisory

https://tracker.ceph.com/issues/54006

Mailing List

https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html

Mailing List

https://lists.debian.org/debian-lts-announce/2025/09/msg00025.html

Scores

CVSS v3 6.5

EPSS 0.0027

EPSS Percentile 51.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Details

CWE

CWE-327 CWE-287

Status published

Products (12)

fedoraproject/fedora 35

fedoraproject/fedora 37

redhat/ceph_storage 3.0

redhat/ceph_storage 4.3

redhat/ceph_storage 5.1

redhat/ceph_storage 4.0

redhat/ceph_storage 5.0

redhat/ceph_storage_for_ibm_z_systems 4.0

redhat/ceph_storage_for_power 4.0

redhat/openshift_container_storage 4.0

... and 2 more

Published Aug 25, 2022

Tracked Since Feb 18, 2026