CVE-2017-1000256 Misconfiguration in n/a
Libvirt fails to validate SSL/TLS certificates by default, allowing attackers to bypass security checks in virtualization environments.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-1000256?
CVE-2017-1000256 is a high-severity vulnerability in Debian Debian Linux, published on 31 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
libvirt version 2.3.0 and later is vulnerable to a bad default configuration of "verify-peer=no" passed to QEMU by libvirt resulting in a failure to validate SSL/TLS certificates by default.
Weakness: CWE-295
Which versions are affected by CVE-2017-1000256?
It affects 2 products.
Linux distribution packages (4)
libvirt SUSE:Linux Enterprise Desktop 12 SP3 | All versions | 3.3.0-5.8.1 |
libvirt SUSE:Linux Enterprise Server 12 SP3 | All versions | 3.3.0-5.8.1 |
libvirt SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 3.3.0-5.8.1 |
libvirt SUSE:Linux Enterprise Software Development Kit 12 SP3 | All versions | 3.3.0-5.8.1 |
Products include Debian Debian Linux, Redhat Libvirt.
How do I fix CVE-2017-1000256?
Apply the vendor's patch.
Is CVE-2017-1000256 being exploited?
There is no known exploitation of CVE-2017-1000256 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2017-1000256, DEBIAN-CVE-2017-1000256, DSA-4003-1, GHSA-gq8m-rwgg-6vv3, SUSE-SU-2017:2850-1.