Skip to content
Fencer Vulns
low 3.3

CVE-2019-17056 json

llcp_sock_create in net/nfc/llcp_sock.c in the AF_NFC network module in the Linux kernel through 5.3.2 does not enforce CAP_NET_RAW, which…

published 2019-10-01 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-7528

cvss
3.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

llcp_sock_create in net/nfc/llcp_sock.c in the AF_NFC 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-3a359798b176.

Patch / fix

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

debian advisories DEBIAN-CVE-2019-17056

  • 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-2019-17056

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-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-rt Real Time Module 15 SP1 4.12.14-14.14.3
  • kernel-syms-rt Real Time Module 15 SP1 4.12.14-14.14.2
  • kernel-rt_debug Real Time Module 15 SP1 4.12.14-14.14.3
  • kernel-source-rt Real Time Module 15 SP1 4.12.14-14.14.2
  • kernel-rt SLE Real Time 12 SP4 4.12.14-8.9.3

suse advisories SUSE-SU-2020:0093-1SUSE-SU-2019:3295-1SUSE-SU-2019:3294-1SUSE-SU-2019:3200-1SUSE-SU-2019:2946-1SUSE-SU-2019:2984-1

  • kernel-syms openSUSE Leap 15.1 4.12.14-lp151.28.25.1
  • kernel-obs-qa openSUSE Leap 15.1 4.12.14-lp151.28.25.1
  • kernel-source openSUSE Leap 15.1 4.12.14-lp151.28.25.1
  • kernel-default openSUSE Leap 15.1 4.12.14-lp151.28.25.1
  • kernel-vanilla openSUSE Leap 15.1 4.12.14-lp151.28.25.1
  • kernel-kvmsmall openSUSE Leap 15.1 4.12.14-lp151.28.25.1
  • kernel-obs-build openSUSE Leap 15.1 4.12.14-lp151.28.25.1
  • kernel-syms openSUSE Leap 15.0 4.12.14-lp150.12.79.1

opensuse advisories openSUSE-SU-2019:2444-1openSUSE-SU-2019:2392-1

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-2019-17056 updated cvss 5.9

kernel: unprivileged access to llcp_sock_create in net/nfc/llcp_sock.c in the AF_NFC socket type.

  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, kernel-alt, python-perf, +9 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise MRG 2 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

0.57% chance of exploitation in the next 30 days, higher than 47% 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
  • CWE-276 Incorrect Default Permissions
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.