CVE-2021-3979

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.

Categories

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.19%
Vendor Advisory fedoraproject.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ceph.com
Affected: n/a ceph
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2024788 vendor advisory issue tracking
https://access.redhat.com/security/cve/CVE-2021-3979 vendor advisory
https://tracker.ceph.com/issues/54006 vendor advisory issue tracking
https://github.com/ceph/ceph/pull/44765 third party advisory patch
https://github.com/ceph/ceph/commit/47c33179f9a15ae95cc1579a421be89378602656 third party advisory patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPOK44BESMIFW6BIOGCN452AKKOIIT6Q/ vendor advisory mailing list
https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html

Frequently Asked Questions

What is the severity of CVE-2021-3979?
CVE-2021-3979 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3979?
To fix CVE-2021-3979, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3979 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3979 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3979?
CVE-2021-3979 affects n/a ceph.
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