National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-17448 Detail

Current Description

net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations, which allows local users to bypass intended access restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces.

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

Quick Info

CVE Dictionary Entry:
CVE-2017-17448
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:
7.8 High
Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (legend)
Impact Score:
5.9
Exploitability Score:
1.8
CVSS Version 3 Metrics:
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS Severity (version 2.0):
CVSS v2 Base Score:
4.6 MEDIUM
Vector:
(AV:L/AC:L/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore:
6.4
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

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/102117 Third Party Advisory; VDB Entry External Source BID 102117
https://patchwork.kernel.org/patch/10089373/ Patch; Vendor Advisory External Source MISC https://patchwork.kernel.org/patch/10089373/
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)

Change History 4 change records found - show changes