CVE-2017-5985 : lxc-user-nic in Linux Containers (LXC) allows local users with a lxc-usernet all

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.

Published 2017-03-14 17:59:00

Updated 2019-10-03 00:03:26

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2017-5985

Linuxcontainers » LXC
Versions from including (>=) 2.0.0 and up to, including, (<=) 2.0.6
cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*
Matching versions
Linuxcontainers » LXC
Versions up to, including, (<=) 1.0.9
cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2017-5985

EPSS FAQ

0.09%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 23 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-5985

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.1	LOW	AV:L/AC:L/Au:N/C:N/I:P/A:N	3.9	2.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
3.3	LOW	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N	1.8	1.4	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: Low Availability: None

CWE ids for CVE-2017-5985

CWE-862 Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2017-5985

https://lists.linuxcontainers.org/pipermail/lxc-devel/2017-March/015535.html

[lxc-devel] Security fix for CVE-2017-5985 (lxc-user-nic)
Vendor Advisory
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1654676

Bug #1654676 “lxc-user-nic does not ensure that target netns is ...” : Bugs : lxc package : Ubuntu
Third Party Advisory
https://github.com/lxc/lxc/commit/16af238036a5464ae8f2420ed3af214f0de875f9

CVE-2017-5985: Ensure target netns is caller-owned · lxc/lxc@16af238 · GitHub
Issue Tracking;Patch
http://www.openwall.com/lists/oss-security/2017/03/09/4

oss-security - LXC: CVE-2017-5985: lxc-user-nic didn't verify network namespace ownership
Mailing List;Third Party Advisory
http://www.ubuntu.com/usn/USN-3224-1

USN-3224-1: LXC vulnerability | Ubuntu security notices
Third Party Advisory
http://www.securityfocus.com/bid/96777

LXC 'lxc/lxc_user_nic.c' Remote Privilege Escalation Vulnerability
Third Party Advisory;VDB Entry
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html

[security-announce] openSUSE-SU-2019:1481-1: important: Security update

CVEs referencing this url

Jump to

Vulnerability Details : CVE-2017-5985

Products affected by CVE-2017-5985

Exploit prediction scoring system (EPSS) score for CVE-2017-5985

CVSS scores for CVE-2017-5985

CWE ids for CVE-2017-5985

References for CVE-2017-5985