Auth bypass in Linuxcontainers Lxc
CVE-2017-5985
lxc-user-nic in Linux Containers (LXC) allows local users with a lxc-usernet allocation to create network interfaces on the host and choose the name of those interfaces by leveraging lack of netns ownership check.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (25.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- lists.linuxcontainers.org/pipermail/lxc-devel/2017-March/015535.html (Vendor Advisory, mailing-list)
- github.com/lxc/lxc/commit/16af238036a5464ae8f2420ed3af214f0de875f9 (Patch, Issue Tracking)
- www.securityfocus.com/bid/96777 (VDB Entry, Third Party Advisory, vdb-entry)
- bugs.launchpad.net/ubuntu/+source/lxc/+bug/1654676 (Third Party Advisory)
- www.ubuntu.com/usn/USN-3224-1 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2017/03/09/4 (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html (vendor-advisory)
Frequently asked questions
- What is CVE-2017-5985?
- CVE-2017-5985 is a low-severity vulnerability in Linuxcontainers Lxc, classified under Missing Authorization. CVSS score: 3.3/10. Published 2017-03-14.
- How severe is CVE-2017-5985?
- Low severity. CVSS v3 base score is 3.3 out of 10.