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Fencer Vulns
low 3.3

CVE-2019-17055 json

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_RA…

published 2019-10-01 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-7527

cvss
3.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

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.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 5.3.7-1

debian advisories DEBIAN-CVE-2019-17055

  • linux Ubuntu 16.04 LTS 4.4.0-168.197
  • linux Ubuntu 18.04 LTS 4.15.0-69.78
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1098.109
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1054.56
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1049.52
  • linux-gcp Ubuntu 18.04 LTS 5.0.0-1025.26~18.04.1
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-69.78~16.04.1
  • linux-hwe Ubuntu 18.04 LTS 5.0.0-35.38~18.04.1

ubuntu advisories UBUNTU-CVE-2019-17055

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 7 3.10.0-1160.el7
  • perf RHEL 7 3.10.0-1160.el7
  • bpftool RHEL 7 3.10.0-1160.el7
  • python-perf RHEL 7 3.10.0-1160.el7
  • kernel-kdump RHEL 7 3.10.0-1160.el7
  • kernel-tools RHEL 7 3.10.0-1160.el7
  • kernel-tools-libs RHEL 7 3.10.0-1160.el7
  • kernel-bootwrapper RHEL 7 3.10.0-1160.el7

red hat advisories RHSA-2020:4060RHSA-2020:4062RHSA-2020:1567RHSA-2020:1769RHSA-2020:0790

  • kernel-azure SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-16.7.1
  • kernel-syms-azure SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-16.7.1
  • kernel-source-azure SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-16.7.1
  • kernel-syms SLE Module for Development Tools 15 4.12.14-150.47.1
  • kernel-source SLE Module for Development Tools 15, SLE Module for Basesystem 15 4.12.14-150.47.1
  • kernel-default SLE Workstation Extension 15, SLE Module for Legacy 15, SLE Module for Basesystem 15 +2 more 4.12.14-150.47.1
  • kernel-vanilla SLE Module for Development Tools 15 4.12.14-150.47.1
  • kernel-zfcpdump SLE Module for Basesystem 15 4.12.14-150.47.1

suse advisories SUSE-SU-2020:0093-1SUSE-SU-2019:3381-1SUSE-SU-2019:3372-1SUSE-SU-2019:3371-1SUSE-SU-2019:3317-1SUSE-SU-2019:3295-1

  • kernel-syms openSUSE Leap 15.1 4.12.14-lp151.28.32.1
  • kernel-obs-qa openSUSE Leap 15.1 4.12.14-lp151.28.32.1
  • kernel-source openSUSE Leap 15.1 4.12.14-lp151.28.32.1
  • kernel-default openSUSE Leap 15.1 4.12.14-lp151.28.32.1
  • kernel-vanilla openSUSE Leap 15.1 4.12.14-lp151.28.32.1
  • kernel-kvmsmall openSUSE Leap 15.1 4.12.14-lp151.28.32.1
  • kernel-obs-build openSUSE Leap 15.1 4.12.14-lp151.28.32.1
  • kernel-syms openSUSE Leap 15.0 4.12.14-lp150.12.82.1

opensuse advisories openSUSE-SU-2019:2507-1openSUSE-SU-2019:2503-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-17055 updated cvss 4.0

kernel: unprivileged users able to create RAW sockets in AF_ISDN network protocol

  • Red Hat Enterprise Linux 7 perf, kernel, kernel-alt, python-perf, kernel-kdump, kernel-tools, +3 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: workaround, no fix planned “Will not fix”
  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-193.el8, kernel-debuginfo-common-aarch64 4.18.0-193.el8, kernel-debuginfo-common-ppc64le 4.18.0-193.el8 Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-193.el8, kernel 4.18.0-193.el8, bpftool 4.18.0-193.el8, kernel-core 4.18.0-193.el8, kernel-tools 4.18.0-193.el8, python3-perf 4.18.0-193.el8, +15 more
    fixed: vendor fix RHSA-2020:1769
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-754.28.1.el6, kernel 2.6.32-754.28.1.el6, kernel-firmware 2.6.32-754.28.1.el6, kernel-abi-whitelists 2.6.32-754.28.1.el6, kernel-debuginfo-common-i686 2.6.32-754.28.1.el6, kernel-debuginfo-common-x86_64 2.6.32-754.28.1.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-754.28.1.el6, kernel-debuginfo-common-i686 2.6.32-754.28.1.el6, kernel-debuginfo-common-x86_64 2.6.32-754.28.1.el6
    fixed: vendor fix RHSA-2020:0790
  • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-1160.rt56.1131.el7, kernel-rt-trace 3.10.0-1160.rt56.1131.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.rt56.1131.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-1160.rt56.1131.el7, kernel-rt-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-trace 3.10.0-1160.rt56.1131.el7, kernel-rt-debug-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-trace-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.rt56.1131.el7
    fixed: vendor fix RHSA-2020:4062
  • Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-754.28.1.el6, kernel 2.6.32-754.28.1.el6, kernel-firmware 2.6.32-754.28.1.el6, kernel-abi-whitelists 2.6.32-754.28.1.el6, kernel-debuginfo-common-i686 2.6.32-754.28.1.el6, kernel-debuginfo-common-x86_64 2.6.32-754.28.1.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-754.28.1.el6, kernel-debuginfo-common-x86_64 2.6.32-754.28.1.el6
    fixed: vendor fix RHSA-2020:0790
  • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-193.rt13.51.el8, kernel-rt-core 4.18.0-193.rt13.51.el8, kernel-rt-modules 4.18.0-193.rt13.51.el8, kernel-rt-debug-core 4.18.0-193.rt13.51.el8, kernel-rt-debug-modules 4.18.0-193.rt13.51.el8, kernel-rt-modules-extra 4.18.0-193.rt13.51.el8, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-193.rt13.51.el8, kernel-rt-kvm 4.18.0-193.rt13.51.el8, kernel-rt-core 4.18.0-193.rt13.51.el8, kernel-rt-modules 4.18.0-193.rt13.51.el8, kernel-rt-debug-kvm 4.18.0-193.rt13.51.el8, kernel-rt-debug-core 4.18.0-193.rt13.51.el8, +4 more
    fixed: vendor fix RHSA-2020:1567
  • Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-754.28.1.el6, kernel 2.6.32-754.28.1.el6, kernel-kdump 2.6.32-754.28.1.el6, kernel-firmware 2.6.32-754.28.1.el6, kernel-bootwrapper 2.6.32-754.28.1.el6, kernel-abi-whitelists 2.6.32-754.28.1.el6, +4 more
    fixed: vendor fix RHSA-2020:0790
show 8 more
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-kdump 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, +7 more
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-754.28.1.el6, kernel-debuginfo-common-i686 2.6.32-754.28.1.el6, kernel-debuginfo-common-ppc64 2.6.32-754.28.1.el6, kernel-debuginfo-common-s390x 2.6.32-754.28.1.el6, kernel-debuginfo-common-x86_64 2.6.32-754.28.1.el6
    fixed: vendor fix RHSA-2020:0790
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-1160.el7, kernel-debuginfo-common-x86_64 3.10.0-1160.el7, kernel-debuginfo-common-ppc64le 3.10.0-1160.el7
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-754.28.1.el6, kernel 2.6.32-754.28.1.el6, kernel-firmware 2.6.32-754.28.1.el6, kernel-abi-whitelists 2.6.32-754.28.1.el6, kernel-debuginfo-common-i686 2.6.32-754.28.1.el6, kernel-debuginfo-common-x86_64 2.6.32-754.28.1.el6
    fixed: vendor fix RHSA-2020:0790
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-754.28.1.el6, kernel-debuginfo-common-i686 2.6.32-754.28.1.el6, kernel-debuginfo-common-x86_64 2.6.32-754.28.1.el6
    fixed: vendor fix RHSA-2020:0790
  • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux 5 kernel
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.