Link Following The advisory has been revoked - it doesn't affect any version of package vzctl (opens in a new tab)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-UBUNTU1804-VZCTL-625104
- published28 Sept 2015
- disclosed28 Sept 2015
Introduced: 28 Sep 2015
CVE-2015-6927 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream vzctl package and not the vzctl package as distributed by Ubuntu.
vzctl before 4.9.4 determines the virtual environment (VE) layout based on the presence of root.hdd/DiskDescriptor.xml in the VE private directory, which allows local simfs container (CT) root users to change the root password for arbitrary ploop containers, as demonstrated by a symlink attack on the ploop container root.hdd file and then access a control panel.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2015-6927
- http://www.debian.org/security/2015/dsa-3357
- https://security-tracker.debian.org/tracker/CVE-2015-6927
- https://security.gentoo.org/glsa/201701-30
- https://openvz.org/Download/vzctl/4.9.4
- https://src.openvz.org/projects/OVZL/repos/vzctl/commits/9e98ea630ac0e88b44e3e23c878a5166aeb74e1c