Security Bulletin: Vulnerabilities in libvirt affect PowerKVM

Summary

PowerKVM is affected by vulnerabilities in libvirt. IBM has now addressed these vulnerabilities.

Vulnerability Details

CVEID: CVE-2018-5748 DESCRIPTION: QEMU is vulnerable to a denial of service, caused by an error in qemu/qemu_monitor.c in libvirt. By using a large QEMU reply, a local attacker could exploit this vulnerability to consume an overly large amount of memory resources.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/138320 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2018-1064 DESCRIPTION: libvirt is vulnerable to a denial of service, caused by a resource exhaustion in the QEMU monitor. A local authenticated attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/141312 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

PowerKVM 3.1

Remediation/Fixes

Customers can update PowerKVM systems by using “yum update”.

Fix images are made available via Fix Central. See <https://ibm.biz/BdHggw&gt;. This issue is addressed starting with v3.1.0.2 update 14.

Workarounds and Mitigations

none