CVE-2017-5985

Severity: low (CVSS 3.3 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-03-14 · updated 2026-06-17
Weakness: CWE-862

Description

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.

Affected products

lxc: through 1.0.9; from 2.0.0 through 2.0.6

References

http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html
http://www.openwall.com/lists/oss-security/2017/03/09/4
http://www.securityfocus.com/bid/96777
http://www.ubuntu.com/usn/USN-3224-1
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1654676
https://github.com/lxc/lxc/commit/16af238036a5464ae8f2420ed3af214f0de875f9
https://lists.linuxcontainers.org/pipermail/lxc-devel/2017-March/015535.html
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html
http://www.openwall.com/lists/oss-security/2017/03/09/4
http://www.securityfocus.com/bid/96777
http://www.ubuntu.com/usn/USN-3224-1
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1654676

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