CVE-2016-7797 Denial of service in n/a
Remote attackers can cause denial of service by disconnecting nodes via unauthenticated connections when Pacemaker remote is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-7797?
CVE-2016-7797 is a high-severity denial of service vulnerability in Opensuse Leap, published on 24 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Pacemaker before 1.1.15, when using pacemaker remote, might allow remote attackers to cause a denial of service (node disconnection) via an unauthenticated connection.
Weakness: CWE-254
Which versions are affected by CVE-2016-7797?
It affects 7 products.
Linux distribution packages (10)
pacemaker Red Hat:enterprise_linux:7::server | All versions | 0:1.1.15-11.el7 |
pacemaker-cli Red Hat:enterprise_linux:7::server | All versions | 0:1.1.15-11.el7 |
pacemaker-cluster-libs Red Hat:enterprise_linux:7::server | All versions | 0:1.1.15-11.el7 |
pacemaker-cts Red Hat:enterprise_linux:7::server | All versions | 0:1.1.15-11.el7 |
pacemaker-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:1.1.15-11.el7 |
pacemaker-doc Red Hat:enterprise_linux:7::server | All versions | 0:1.1.15-11.el7 |
pacemaker-libs Red Hat:enterprise_linux:7::server | All versions | 0:1.1.15-11.el7 |
pacemaker-libs-devel Red Hat:enterprise_linux:7::server | All versions | 0:1.1.15-11.el7 |
pacemaker-nagios-plugins-metadata Red Hat:enterprise_linux:7::server | All versions | 0:1.1.15-11.el7 |
pacemaker-remote Red Hat:enterprise_linux:7::server | All versions | 0:1.1.15-11.el7 |
Products include Clusterlabs Pacemaker, Opensuse Leap, Opensuse Project Leap, Redhat Enterprise Linux High Availability, Redhat Enterprise Linux Resilient Storage, Suse Linux Enterprise High Availability and 1 more.
How do I fix CVE-2016-7797?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2016-7797 being exploited?
There is no known exploitation of CVE-2016-7797 in the wild and no public exploit code.
Other vulnerabilities in Opensuse Leap
Sources
Also known as DEBIAN-CVE-2016-7797, GHSA-gp6f-9wm3-5hr4, RHSA-2016:2578, UBUNTU-CVE-2016-7797.