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.

Published: 2017-03-14 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-5985 is rated Low Risk (22.3/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.34%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

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

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.09% 0.34% +0.25%
2 2025-03-17 0.04% 0.09% +0.04%
3 2023-03-07 — 0.04% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-5985

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.3 3.0 LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 1.4 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2017-5985

OS Trackers for CVE-2017-5985

vendor priority summary link
debian not yet assigned CVE-2017-5985 not yet assigned priority: Debian including 1 source packages (lxc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-5985
ubuntu medium CVE-2017-5985 medium priority: Ubuntu including 1 source packages (lxc), 5 status rows across 5 suites (precise, trusty, upstream, xenial, yakkety): released 3, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2017-5985

Affected software / configurations for CVE-2017-5985

Vendor Product Version Raw CPE
linuxcontainers lxc <= 1.0.9 cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*
linuxcontainers lxc >= 2.0.0, <= 2.0.6 cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*

References for CVE-2017-5985

cvelogic Threat Intelligence