What is CVE-2017-17449?

CVE-2017-17449 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Information Exposure flaw (CWE-200). CVE-2017-17449 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-17449?

CVE-2017-17449 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Is there a patch available for CVE-2017-17449?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-17449 patch availability.

Is CVE-2017-17449 actively exploited?

CVE-2017-17449 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Information Exposure (CWE-200)?

The product exposes sensitive information to an actor not authorised to see it. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/200.html

CVE-2017-17449

Medium

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.

Package Linux Kernel

Published 2017-12-07

Last modified 2026-05-13

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Vector string

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness type

CWE-200

CVE-2017-17449 is a Information Exposure vulnerability

What is Information Exposure?

The product exposes sensitive information to an actor not authorised to see it. Learn more on MITRE CWE

References

17 total

Securityfocus
http://www.securityfocus.com/bid/102122

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHSA-2018:0654
Red Hat
https://access.redhat.com/errata/RHSA-2018:0676
Red Hat
https://access.redhat.com/errata/RHSA-2018:1062
Red Hat
https://access.redhat.com/errata/RHSA-2018:1130

Showing 5 of 17 references View all on NVD

Details

CVE ID CVE-2017-17449

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.0

Published 2017-12-07

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-17449?

CVE-2017-17449 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as an Information Exposure flaw (CWE-200) . CVE-2017-17449 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-17449?

CVE-2017-17449 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
Is there a patch available for CVE-2017-17449?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-17449 patch availability.
Is CVE-2017-17449 actively exploited?

No. CVE-2017-17449 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.