CVE-2019-12818

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.20.15

Description The issue is related to the nfc llcp build tlv function in the Linux kernel, which may return NULL. If the caller does not check for this, it will trigger a null pointer dereference, causing a denial of service. This can be exploited by a remote attacker to cause a service disruption.

Recommendations For Linux kernel versions prior to 4.20.15, update to version 4.20.15 or later to resolve the issue. As a temporary workaround, consider implementing checks for NULL return values from the nfc llcp build tlv function to prevent null pointer dereferences.