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Vulnerability record · CVE-2019-17056 · published 1 October 2019

CVE-2019-17056: Linux kernel incorrect default permissions vulnerability

Linux · Linux Kernel

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.

3.3 CVSS 3.1 Low EPSS 0.57% · top 55.2% CWE-276 · Incorrect default permissions
3.3CVSS 3.1 base score, v2 2.1
0.57%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
28References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00064.html
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0edc3f703f7bcaf550774b5d43ab727bcd0fe06b PatchVendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3a359798b176183ef09efb7a3dc59abad1cc7104 Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6JNEWGIK7QA24OIUUL67QZ
https://seclists.org/bugtraq/2019/Nov/11
https://usn.ubuntu.com/4184-1/
https://usn.ubuntu.com/4185-1/
https://usn.ubuntu.com/4185-2/
https://usn.ubuntu.com/4186-1/
https://usn.ubuntu.com/4186-2/
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00064.html
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0edc3f703f7bcaf550774b5d43ab727bcd0fe06b PatchVendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3a359798b176183ef09efb7a3dc59abad1cc7104 Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6JNEWGIK7QA24OIUUL67QZ
https://seclists.org/bugtraq/2019/Nov/11
https://usn.ubuntu.com/4184-1/
https://usn.ubuntu.com/4185-1/
https://usn.ubuntu.com/4185-2/
https://usn.ubuntu.com/4186-1/
https://usn.ubuntu.com/4186-2/

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Source: NIST National Vulnerability Database (record CVE-2019-17056), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.