Description
The __netlink_deliver_tap_skb function in net/netlink/af_netlink.c in the Linux kernel through 4.14.4, when CONFIG_NLMON is enabled, does not restrict observations of Netlink messages to a single net namespace, which allows local users to obtain sensitive information by leveraging the CAP_NET_ADMIN capability to sniff an nlmon interface for all Netlink activity on the system.
Published: 2017-12-07
Score: 4.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-4073-1 linux security update
Debian DSA Debian DSA DSA-4082-1 linux security update
EUVD EUVD EUVD-2017-8613 The __netlink_deliver_tap_skb function in net/netlink/af_netlink.c in the Linux kernel through 4.14.4, when CONFIG_NLMON is enabled, does not restrict observations of Netlink messages to a single net namespace, which allows local users to obtain sensitive information by leveraging the CAP_NET_ADMIN capability to sniff an nlmon interface for all Netlink activity on the system.
Ubuntu USN Ubuntu USN USN-3619-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3619-2 Linux kernel (Xenial HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3653-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3653-2 Linux kernel (HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3655-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3655-2 Linux kernel (Trusty HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3657-1 Linux kernel (Raspberry Pi 2) vulnerabilities
History

No history.

Subscriptions

Linux Linux Kernel
Redhat Enterprise Linux Enterprise Mrg Rhel Eus Rhel Extras Rt
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T20:51:31.636Z

Reserved: 2017-12-06T00:00:00.000Z

Link: CVE-2017-17449

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2017-12-07T00:29:00.350

Modified: 2026-05-13T00:24:29.033

Link: CVE-2017-17449

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-12-05T00:00:00Z

Links: CVE-2017-17449 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses