#VU66551 Use of a broken or risky cryptographic algorithm in Red Hat Ceph Storage - CVE-2021-3979
Published: August 16, 2022
Vulnerability identifier: #VU66551
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-3979
CWE-ID: CWE-327
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Red Hat Ceph Storage
Red Hat Ceph Storage
Software vendor:
Red Hat Inc.
Red Hat Inc.
Description
The vulnerability allows an attacker to gain access to sensitive information.
The vulnerability exists due to Ceph volume does not the honour osd_dmcrypt_key_size, resulting in the key length is being incorrectly passed in an encryption algorithm to create a non random key. An attacker with physical access to encrypted device can decrypt data and gain access to sensitive information.
Remediation
Install updates from vendor's website.