SB2019070207 - Denial of service in Linux Kernel NFC implementation



SB2019070207 - Denial of service in Linux Kernel NFC implementation

Published: July 2, 2019

Security Bulletin ID SB2019070207
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Physical access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) NULL pointer dereference (CVE-ID: CVE-2019-12984)

The vulnerability allows an attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the "nfc_genl_deactivate_target()" function in "net/nfc/netlink.c" file. An attacker with physical access to the system can persuade a user to execute an application that omits certain near-field communication (NFC) attributes and perform a denial of service (DoS) attack.




Remediation

Install update from vendor's website.