CVE-2017-5936 OpenStack Nova-LXD bypass security restrictions

What is CVE-2017-5936?

CVE-2017-5936 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 12 Apr 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Which versions are affected by CVE-2017-5936?

3 open source packages ship an affected version, including nova-lxd. It affects 2 products.

Products include Canonical Ubuntu Linux, Openstack Nova-Lxd.

How do I fix CVE-2017-5936?

Upgrade nova-lxd to 13.1.1 or later.

Is CVE-2017-5936 being exploited?

There is no known exploitation of CVE-2017-5936 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-6xc7-4cx8-j3xc, PYSEC-2017-21, UBUNTU-CVE-2017-5936, USN-3195-1.