CVE-2017-5936
CVE-2017-5936 is a high-severity vulnerability in Openstack Nova-lxd with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 3% (85th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Openstack Nova-lxd
- Published:
- Last modified:
Description
OpenStack Nova-LXD before 13.1.1 uses the wrong name for the veth pairs when applying Neutron security group rules for instances, which allows remote attackers to bypass intended security restrictions.
Frequently asked questions
- What is CVE-2017-5936?
- OpenStack Nova-LXD before 13.1.1 uses the wrong name for the veth pairs when applying Neutron security group rules for instances, which allows remote attackers to bypass intended security restrictions.
- How severe is CVE-2017-5936?
- CVE-2017-5936 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2017-5936 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-5936?
- CVE-2017-5936 primarily affects Openstack Nova-lxd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2017-5936?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2017-5936 published?
- CVE-2017-5936 was published on 2017-04-12 and last updated on 2026-06-17.
References
- http://www.openwall.com/lists/oss-security/2017/02/09/3
- http://www.securityfocus.com/bid/96182
- http://www.ubuntu.com/usn/USN-3195-1
- https://bugs.launchpad.net/nova-lxd/+bug/1656847
- https://github.com/openstack/nova-lxd/commit/1b76cefb92081efa1e88cd8f330253f857028bd2
Affected products (2)
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:a:openstack:nova-lxd:*:*:*:*:*:*:*:*