CVE-2021-3979

NameCVE-2021-3979
DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ceph (PTS)buster12.2.11+dfsg1-2.1vulnerable
bullseye14.2.21-1vulnerable
bookworm, sid16.2.11+ds-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
cephsource(unstable)16.2.9+ds-1

Notes

[bullseye] - ceph <no-dsa> (Minor issue)
[buster] - ceph <no-dsa> (Minor issue)
[stretch] - ceph <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2022/01/11/5
https://tracker.ceph.com/issues/54006
https://github.com/ceph/ceph/commit/47c33179f9a15ae95cc1579a421be89378602656 (main)
https://github.com/ceph/ceph/commit/f69339e00f582ec64b843ff58b66817975fca0d7 (v16.2.8)

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