PT-2019-4752 · Linux+5 · Linux Kernel+5

Ori Nimron · Published 2019-09-20 · Updated 2022-03-31 · CVE-2019-17055

Positive Technologies (AI Summary)

CVSS v3.1

3.3

Low

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions through 5.3.2

Description The issue is related to the base sock create function in the AF ISDN network module of the Linux kernel, which lacks sufficient input validation. This can be exploited to impact data integrity. Unprivileged users can create a raw socket due to the lack of enforcement of the CAP NET RAW capability.

Recommendations For Linux kernel versions through 5.3.2, update to a version that contains a fix for this issue to prevent unprivileged users from creating raw sockets. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Missing Authorization

Weakness Enumeration

CWE-20

CWE-862

Related Identifiers

ALT-PU-2019-2838

ALT-PU-2019-2845

ALT-PU-2019-2891

ALT-PU-2020-1198

ALT-PU-2020-1501

ALT-PU-2020-1714

ALT-PU-2020-2410

ALT-PU-2020-2433

ALT-PU-2021-1870

BDU:2020-01324

CESA-2020_0790

CESA-2020_1567

CESA-2020_1769

CESA-2020_4060

CVE-2019-17055

DLA-2068-1

DLA-2114-1

OPENSUSE-SU-2019:2503-1

OPENSUSE-SU-2019:2507-1

OPENSUSE-SU-2019_2503-1

OPENSUSE-SU-2019_2507-1

RHSA-2020:0790

RHSA-2020:1567

RHSA-2020:1769

RHSA-2020:4060

RHSA-2020:4062

RHSA-2020_0790

RHSA-2020_1567

RHSA-2020_1769

RHSA-2020_4060

RHSA-2020_4062

SUSE-SU-2019:14218-1

SUSE-SU-2019:2949-1

SUSE-SU-2019:2950-1

SUSE-SU-2019:2951-1

SUSE-SU-2019:2953-1

SUSE-SU-2019:2984-1

SUSE-SU-2019:3200-1

SUSE-SU-2019:3294-1

SUSE-SU-2019:3295-1

SUSE-SU-2019:3317-1

SUSE-SU-2019:3371-1

SUSE-SU-2019:3372-1

SUSE-SU-2019:3381-1

SUSE-SU-2019_14218-1

SUSE-SU-2020:0093-1

USN-4184-1

USN-4185-1

USN-4185-2

USN-4186-1

USN-4186-2

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 691

• https://ubuntu.com/security/CVE-2019-0155 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4185-2 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:2984-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-16746 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:2950-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4185-2 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2019:2507-1 · Vendor Advisory
• https://usn.ubuntu.com/4184-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4184-1 · Vendor Advisory
• https://usn.ubuntu.com/4185-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-17055 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2019:3371-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-17055 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:3295-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:3317-1 · Vendor Advisory