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AMD Chipset Driver Information Disclosure / Memory Leak

AMD Chipset Driver Information Disclosure / Memory Leak
Posted Sep 20, 2021
Authored by Kyriakos Economou | Site zeroperil.co.uk

ZeroPeril Ltd has discovered two issues inside the amdpsp.sys (v4.13.0.0) kernel driver module that ships with the AMD Chipset Drivers package for multiple AMD chipsets. The first issue is an information disclosure type security vulnerability and the second is a memory leak type bug due to insufficient releasing of all associated allocated resources upon request. The researchers have verified both in the latest Revision Number (2.13.27.501) of the package that was released the 4th of February 2021.

tags | advisory, kernel, memory leak, info disclosure
advisories | CVE-2021-26333
MD5 | f75f9682872ea122ae17d2135dc3359a
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