SB2019070207 - Denial of service in Linux Kernel NFC implementation
Published: July 2, 2019
Security Bulletin ID
SB2019070207
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2019-12984)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 5.1 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
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.