Find real vulnerabilities before they ship
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.
Base Score
4.7
| Base Score | 4.7 |
|---|---|
| Vector String | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
| Base Severity | Medium |
| Version | 3.0 |
| Attack Vector (AV) | LOCAL |
