National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-17449 Detail

Current 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.

Source:  MITRE      Last Modified:  12/06/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-17449
Original release date:
12/06/2017
Last revised:
01/10/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
4.7 Medium
Vector:
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N (legend)
Impact Score:
3.6
Exploitability Score:
1.0
CVSS Version 3 Metrics:
Attack Vector (AV):
Local
Attack Complexity (AC):
High
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None
CVSS Severity (version 2.0):
CVSS v2 Base Score:
1.9 LOW
Vector:
(AV:L/AC:M/Au:N/C:P/I:N/A:N) (legend)
Impact Subscore:
2.9
Exploitability Subscore:
3.4
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Medium
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource Type Source Name
http://www.securityfocus.com/bid/102122 Third Party Advisory; VDB Entry External Source BID 102122
https://lkml.org/lkml/2017/12/5/950 Mailing List; Third Party Advisory External Source MISC https://lkml.org/lkml/2017/12/5/950
https://www.debian.org/security/2017/dsa-4073 External Source DEBIAN DSA-4073
https://www.debian.org/security/2018/dsa-4082 External Source DEBIAN DSA-4082

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Change History 4 change records found - show changes