Heap-based Buffer Overflow in Samba GSSAPI by Heimdal

CVE-2022-3437

What is CVE-2022-3437?

A heap-based buffer overflow vulnerability exists in Samba's GSSAPI routines, specifically in the unwrap_des() and unwrap_des3() functions of the Heimdal library. This flaw is triggered when the application processes a maliciously crafted small packet, allowing a remote attacker to exploit memory allocated by malloc(). The compromise could lead to potential denial of service (DoS) conditions, impacting the availability and integrity of the affected system.

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References