Heap-based Buffer Overflow Vulnerability in Linux Kernel FireDTV Media Card Driver

Heap-based Buffer Overflow Vulnerability in Linux Kernel FireDTV Media Card Driver

CVE-2021-42739 · MEDIUM Severity

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking.

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