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CVE-2019-12818 Details

Description

An issue was discovered in the Linux kernel before 4.20.15. The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This affects nfc_llcp_build_gb in net/nfc/llcp_core.c.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html	CVE
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html	CVE
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html	CVE
http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html	CVE
https://github.com/torvalds/linux/commit/58bdd544e2933a21a51eecf17c3f5f94038261b5	CVE	PatchThird Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=58bdd544e2933a21a51eecf17c3f5f94038261b5	CVE	Mailing ListPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20190710-0002/	CVE
https://support.f5.com/csp/article/K91444306	CVE
https://usn.ubuntu.com/4094-1/	CVE
https://usn.ubuntu.com/4118-1/	CVE
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.15	CVE	Mailing ListRelease NotesVendor Advisory
http://www.securityfocus.com/bid/108776	CVE	Third Party AdvisoryVDB Entry
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html	[email protected]
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html	[email protected]
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html	[email protected]
http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html	[email protected]
https://github.com/torvalds/linux/commit/58bdd544e2933a21a51eecf17c3f5f94038261b5	[email protected]	PatchThird Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=58bdd544e2933a21a51eecf17c3f5f94038261b5	[email protected]	Mailing ListPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20190710-0002/	[email protected]
https://support.f5.com/csp/article/K91444306	[email protected]
https://usn.ubuntu.com/4094-1/	[email protected]
https://usn.ubuntu.com/4118-1/	[email protected]
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.15	[email protected]	Mailing ListRelease NotesVendor Advisory
http://www.securityfocus.com/bid/108776	[email protected]	Third Party AdvisoryVDB Entry

see all 24 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-476	NULL Pointer Dereference	[email protected]

Affected Products

Product	Versions
linux linux kernel	< 4.20.15
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.

Change History

13 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Sep 3, 2019	CVE Modified	[email protected]
Aug 29, 2019	CVE Modified	[email protected]
Aug 13, 2019	CVE Modified	[email protected]
Jul 10, 2019	CVE Modified	[email protected]
Jul 9, 2019	CVE Modified	[email protected]
Jun 19, 2019	CVE Modified	[email protected]
Jun 18, 2019	CVE Modified	[email protected]
Jun 18, 2019	CVE Modified	[email protected]
Jun 17, 2019	Initial Analysis	[email protected]
Jun 17, 2019	CVE Modified	[email protected]