CVE-2017-17449 Information disclosure in n/a

What is CVE-2017-17449?

CVE-2017-17449 is a medium-severity vulnerability in Linux kernel, published on 7 Dec 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-200

Which versions are affected by CVE-2017-17449?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-17449?

Apply the vendor's patch.

Is CVE-2017-17449 being exploited?

There is no known exploitation of CVE-2017-17449 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2017-17449, GHSA-qpxm-m9h2-3v4r, UBUNTU-CVE-2017-17449.