CVE-2021-3979
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.6%
exploitation probability
0.6%top 55% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
n/a · cephReferences
https://access.redhat.com/security/cve/CVE-2021-3979https://bugzilla.redhat.com/show_bug.cgi?id=2024788https://github.com/ceph/ceph/commit/47c33179f9a15ae95cc1579a421be89378602656https://github.com/ceph/ceph/pull/44765https://lists.debian.org/debian-lts-announce/2023/10/msg00034.htmlhttps://lists.debian.org/debian-lts-announce/2025/09/msg00025.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPOK44BESMIFW6BIOGCN452AKKOIIT6Q/https://tracker.ceph.com/issues/54006