PT-2017-14783 · Linux+5 · Linux Kernel+5

Kevin Cernekee · Published 2017-12-06 · Updated 2024-06-15 · CVE-2017-17448

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.14.5

Description The issue allows local users to bypass intended access restrictions. This is due to the lack of requirement for the CAP NET ADMIN capability for certain operations in the net/netfilter/nfnetlink cthelper.c module. The nfnl cthelper list data structure is shared across all net namespaces, which contributes to the problem.

Recommendations For Linux kernel versions prior to 4.14.5, update to version 4.14.5 or later to resolve the issue.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

ALT-PU-2017-2788

ALT-PU-2018-1991

CESA-2018_1062

CVE-2017-17448

DSA-4073-1

DSA-4082-1

OPENSUSE-SU-2017_3358-1

OPENSUSE-SU-2017_3359-1

OPENSUSE-SU-2024:10728-1

OPENSUSE-SU-2024:13704-1

RHSA-2018:0654

RHSA-2018:0676

RHSA-2018:1062

RHSA-2018_0676

RHSA-2018_1062

SUSE-SU-2017:3398-1

SUSE-SU-2017:3410-1

SUSE-SU-2018:0031-1

SUSE-SU-2018:0115-1

SUSE-SU-2018:0213-1

USN-3617-1

USN-3617-2

USN-3617-3

USN-3619-1

USN-3619-2

USN-3620-1

USN-3620-2

USN-3632-1

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 520

• https://ubuntu.com/security/CVE-2017-17806 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-17448 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-5333 · Vendor Advisory
• https://usn.ubuntu.com/3619-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3619-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3620-1 · Vendor Advisory
• https://debian.org/security/2018/dsa-4082 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-11089 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-17805 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-7492 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-5332 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-18075 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7518 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-17741 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16647 · Vendor Advisory