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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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

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

Link: CVE-2017-17449

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

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

Modified: 2025-04-20T01:37:25.860

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.