CVE-2019-17055

LOW

Linux Kernel < 5.3.2 - Unauthenticated Missing Authorization in AF_ISDN Socket Creation

Title source: llm
STIX 2.1

Description

base_sock_create in drivers/isdn/mISDN/socket.c in the AF_ISDN network module in the Linux kernel through 5.3.2 does not enforce CAP_NET_RAW, which means that unprivileged users can create a raw socket, aka CID-b91ee4aa2a21.

References (15)

Core 15
Core References
Mailing List, Third Party Advisory mailing-list x_refsource_bugtraq
https://seclists.org/bugtraq/2019/Nov/11
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4185-1/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4184-1/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4186-1/
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00035.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00039.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4185-2/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4186-2/
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0790

Scores

CVSS v3 3.3
EPSS 0.0009
EPSS Percentile 24.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Details

CWE
CWE-862
Status published
Products (12)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 19.04
debian/debian_linux 8.0
fedoraproject/fedora 29
linux/linux_kernel < 5.3.2
opensuse/leap 15.0
opensuse/leap 15.1
redhat/enterprise_linux_desktop 6.0
... and 2 more
Published Oct 01, 2019
Tracked Since Feb 18, 2026