Linphone SIP Stack Bug Could Let Attackers Remotely Crash Client Devices

Cybersecurity researchers on Tuesday disclosed details about a zero-click security vulnerability in Linphone Session Initiation Protocol (SIP) stack that could be remotely exploited without any action from a victim to crash the SIP client and cause a denial-of-service (DoS) condition. Tracked as CVE-2021-33056 (CVSS score: 7.5), the issue concerns a NULL pointer dereference vulnerability in the