7.5
HIGH
CVE-2019-12818
"Linux Nfc NULL Pointer Dereference Denial of Service"
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.

INFO

Published Date :

June 14, 2019, 2:29 a.m.

Last Modified :

June 18, 2019, 3:15 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2019-12818 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-12818 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-12818 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Sep. 03, 2019

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4118-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 29, 2019

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 13, 2019

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4094-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 10, 2019

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20190710-0002/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 09, 2019

    Action Type Old Value New Value
    Added Reference https://support.f5.com/csp/article/K91444306 [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 19, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 18, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 18, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 17, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://www.securityfocus.com/bid/108776 No Types Assigned http://www.securityfocus.com/bid/108776 Third Party Advisory, VDB Entry
    Changed Reference Type https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=58bdd544e2933a21a51eecf17c3f5f94038261b5 No Types Assigned https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=58bdd544e2933a21a51eecf17c3f5f94038261b5 Mailing List, Patch, Vendor Advisory
    Changed Reference Type https://github.com/torvalds/linux/commit/58bdd544e2933a21a51eecf17c3f5f94038261b5 No Types Assigned https://github.com/torvalds/linux/commit/58bdd544e2933a21a51eecf17c3f5f94038261b5 Patch, Third Party Advisory
    Changed Reference Type https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.15 No Types Assigned https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.15 Mailing List, Release Notes, Vendor Advisory
    Added CWE CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.20.15
  • CVE Modified by [email protected]

    Jun. 17, 2019

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/108776 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-12818 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-12818 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

2.76 }} 0.87%

score

0.90594

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability