Denial of service in Red Hat OpenStack - CVE-2017-16820

Vulnerability identifier: #VU10565

CSH Severity: Low

CVSS v4: 8.7 [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]

CVE-ID: CVE-2017-16820

CWE-ID: CWE-415

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The weakness exists due to the csnmp_read_table function in the snmp.c code in the SNMP plug-in of the collectd daemon. A remote attacker can send specially crafted input to the target system, trigger a double-free memory condition and cause the collected daemon to crash.

Red Hat OpenStack
Amazon Linux AMI
Gentoo Linux
Red Hat Enterprise Linux for x86_64
Fedora
Red Hat Gluster Storage Server for On-premise
Red Hat Virtualization
Red Hat Virtualization Manager
collectd (Alpine package)
collectd

Install update from vendor's website.

collectd (Alpine package) - update to 5.6.2-r1
collectd - addressed in versions 5.8.0-1.el7, 5.8.0-2.fc25, 5.8.0-2.fc26, 5.8.0-2.fc27

• https://access.redhat.com/security/cve/CVE-2017-16820
• https://access.redhat.com/errata/RHSA-2018:0299

• Amazon Linux AMI update for collectd
• Red Hat update for collectd
• Red Hat update for collectd
• Red Hat update for collectd
• Red Hat update for collectd
• Red Hat update for collectd
• Denial of service in collectd (Alpine package)
• Gentoo update for collectd
• Fedora 26 update for collectd
• Fedora EPEL 7 update for collectd
• Fedora 27 update for collectd
• Fedora 25 update for collectd