Information disclosure in Red Hat Ceph

1) Memory leak

EUVDB-ID: #VU17318

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-16889

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.

The vulnerability exists due memory leak in improper sanitization of encryption keys in debug logging output for v4 authentication. A local attacker can trigger memory leak and gain access to plaintext encryption key information in log files.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Ceph: 10.2.7 - 13.2.4

External links

http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16889
http://tracker.ceph.com/issues/37847

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.