Heap Memory Overwrite Vulnerability in PowerVR GPU Kernel Driver on Alcatel 1S Phones

Heap Memory Overwrite Vulnerability in PowerVR GPU Kernel Driver on Alcatel 1S Phones

CVE-2021-31795 · HIGH Severity

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

The PowerVR GPU kernel driver in pvrsrvkm.ko through 2021-04-24 for the Linux kernel, as used on Alcatel 1S phones, allows attackers to overwrite heap memory via PhysmemNewRamBackedPMR.

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