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CVE-2021-3979

Date: August 24, 2022

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 Score

Related Resources (14)

https://access.redhat.com/errata/RHSA-2022:1716
https://access.redhat.com/security/cve/CVE-2021-3979
https://bugzilla.redhat.com/show_bug.cgi?id=2024788
https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPOK44BESMIFW6BIOGCN452AKKOIIT6Q/
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3979
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPOK44BESMIFW6BIOGCN452AKKOIIT6Q/
https://github.com/ceph/ceph/commit/47c33179f9a15ae95cc1579a421be89378602656
https://nvd.nist.gov/vuln/detail/CVE-2021-3979
https://access.redhat.com/errata/RHSA-2022:1174
https://security-tracker.debian.org/tracker/CVE-2021-3979
https://tracker.ceph.com/issues/54006
https://github.com/ceph/ceph/pull/44765
https://www.mend.io/vulnerability-database/CVE-2021-3979

Severity Score

Weakness Type (CWE)

Authentication Issues

CWE-287

Use of a Broken or Risky Cryptographic Algorithm

CWE-327

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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