Improper Certificate Validation The advisory has been revoked - it doesn't affect any version of package libvirt (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1404-LIBVIRT-618463
- published31 Oct 2017
- disclosed31 Oct 2017
Introduced: 31 Oct 2017
CVE-2017-1000256 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:14.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libvirt package and not the libvirt package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-1000256
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000256
- http://www.debian.org/security/2017/dsa-4003
- https://security-tracker.debian.org/tracker/CVE-2017-1000256
- https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1556251.html
- https://www.redhat.com/archives/libvirt-announce/2017-October/msg00001.html
- https://access.redhat.com/security/cve/CVE-2017-1000256
- https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1556251.html