CVE-2017-5985
First published: Tue Mar 14 2017(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linuxcontainers Lxc | <=1.0.9 | |
| Linuxcontainers Lxc | >=2.0.0<=2.0.6 |
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Reference Links
- 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
Frequently Asked Questions
What is the severity of CVE-2017-5985?
CVE-2017-5985 has been rated as a medium severity vulnerability.
How do I fix CVE-2017-5985?
To fix CVE-2017-5985, update LXC to version 1.0.10 or later, or to any version in the 2.0.x series and above.
Who is affected by CVE-2017-5985?
Local users with lxc-usernet allocations in LXC versions up to 1.0.9 and between 2.0.0 and 2.0.6 are affected by CVE-2017-5985.
What types of attacks can exploit CVE-2017-5985?
CVE-2017-5985 can be exploited by local users to create unauthorized network interfaces on the host.
Does CVE-2017-5985 affect newer versions of LXC?
No, CVE-2017-5985 does not affect LXC versions later than 2.0.6.
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- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/remedy
- agent/author
- agent/weakness
- agent/tags
- agent/references
- agent/severity
- agent/event
- agent/description
- agent/first-publish-date
- agent/source
- vendor/linuxcontainers
- canonical/linuxcontainers lxc
- version/linuxcontainers lxc/1.0.9
- version/linuxcontainers lxc/2.0.0
- version/linuxcontainers lxc/2.0.6