Security Bulletin: IBM Storage Ceph is vulnerable to Double Free in the RHEL UBI (CVE-2023-39975)

Summary

RHEL UBI is used by IBM Storage Ceph as the base operating system. CVE-2023-39975 This bulletin identifies the steps to take to address the vulnerability in RHEL.

Vulnerability Details

CVEID:CVE-2023-39975
**DESCRIPTION:**MIT Kerberos 5 (aka krb5) is vulnerable to a denial of service, caused by a double free in KDC TGS processing. By sending a specially crafted request, a remote authenticated attacker could exploit this vulnerability to cause a failure in authorization data handling, and results in a denial of service condition.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/263899 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now.
Download the latest version of IBM Storage Ceph and upgrade to 6.1z3 by following instructions.

<https://public.dhe.ibm.com/ibmdl/export/pub/storage/ceph/&gt;
<https://www.ibm.com/docs/en/storage-ceph/6?topic=upgrading&gt;

Workarounds and Mitigations

None