A vulnerability has been reported in Asterisk, which can be exploited by malicious users to cause a DoS (Denial of Service).
The vulnerability is caused due to the use of uninitialised variables within the SIP channel driver when parsing certain requests, which can be exploited to cause a crash by sending specially crafted requests.
The vulnerability is reported in Asterisk versions 1.8.x prior to 22.214.171.124.
Solution: Update to version 126.96.36.199 or apply patches.
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Subject: Asterisk SIP Channel Driver Uninitialised Variables Denial of Service Vulnerability
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