SB2018051516 - Red Hat update for libvirt

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Main Vulnerability Database SB2018051516

SB2018051516 - Red Hat update for libvirt

Published: May 15, 2018

Security Bulletin ID SB2018051516
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Resource exhaustion (CVE-ID: CVE-2018-1064)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the qemu_agent.c source code file due to an incomplete fix for CVE-2018-5748 that affects the QEMU monitor. A local attacker can consume excessive amounts of memory resources and cause the service to crash.


2) Resource exhaustion (CVE-ID: CVE-2018-5748)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to a flaw in qemu/qemu_monitor.c in libvirt. A remote attacker can supply a large QEMU reply, trigger resource exhaustion and cause the service to crash.

Remediation

Install update from vendor's website.

References