SB2019082112 - Red Hat update for Red Hat Ceph Storage 3.3
Published: August 21, 2019 Updated: August 21, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Information disclosure (CVE-ID: CVE-2018-14662)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote authenticated attacker to obtain potentially sensitive information.
The vulnerability exists due to information exposure. A remote attacker read only permissions can steal dm-crypt encryption keys used in ceph disk encryption.
2) Memory corruption (CVE-ID: CVE-2018-16846)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists in the RADOS Gateway (RGW) code base due to boundary error in the ListBucket max-keys function during bucket listing operations. A remote attacker with Ceph RGW user permissions can trigger memory corruption and perform a denial of service attack against object maps (OMAPs) holding bucket indexes.
3) Memory leak (CVE-ID: CVE-2018-16889)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
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.
Remediation
Install update from vendor's website.