AMD patched several long list of security flaws & vulnerabilities found in its graphics driver for Windows 10 devices, impacting the company’s 1st/2nd/3rd Gen AMD EPYC server processors that could lead to arbitrary code execution and elevate privileges on vulnerable systems, bypassing SPI ROM protections, loss of integrity, denial of service, information disclosure.

The potential impact and the flaws’ severity vary, with AMD tagging more than a dozen bugs as high severity.

During security reviews in collaboration with Google, Microsoft, and Oracle, potential vulnerabilities in the AMD Platform Security Processor (PSP), AMD System Management Unit (SMU), AMD Secure Encrypted Virtualization (SEV) and other platform components were discovered and have been mitigated in AMD EPYC AGESA PI packages

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The company also addressed an improper access control vulnerability (CVE-2021-26334) found in the AMDPowerProfiler.sys driver of the AMD μProf tool. its a performance analysis utility that can be used to inspect Windows, Linux, and FreeBSD applications.

Successful exploitation of this flaw would allow attackers without enough privileges to gain access to kernel model-specific registers, which leads to privilege escalation and ring-0 code execution that gives the attacker full control over the vulnerable system.

CVESeverityDescription
CVE-2020-12902HighArbitrary Decrement Privilege Escalation in AMD Graphics Driver for Windows 10 may lead to escalation of privilege or denial of service.
CVE-2020-12891HighAMD Radeon Software  may be vulnerable to DLL Hijacking through path variable. An  unprivileged user may be able to drop its malicious DLL file in any location which is in path environment variable. 
CVE-2020-12892HighAn untrusted search path in AMD Radeon settings Installer may lead to a privilege escalation or unauthorized code execution.
CVE-2020-12893HighStack Buffer Overflow in AMD Graphics Driver for Windows 10 in Escape 0x15002a may lead to escalation of privilege or denial of service.
CVE-2020-12894HighArbitrary Write in AMD Graphics Driver for Windows 10 in Escape 0x40010d may lead to arbitrary write to kernel memory or denial of service.
CVE-2020-12895HighPool/Heap Overflow in AMD Graphics Driver for Windows 10 in Escape 0x110037 may lead to   escalation of privilege, information disclosure or denial of service.
CVE-2020-12898HighStack Buffer Overflow in AMD Graphics Driver for Windows 10 may lead to escalation of privilege or denial of service.
CVE-2020-12901HighArbitrary Free After Use in AMD Graphics Driver for Windows 10 may lead to KASLR bypass or information disclosure.
CVE-2020-12903HighOut of Bounds Write and Read in AMD Graphics Driver for Windows 10 in Escape 0x6002d03 may lead to escalation of privilege or denial of service.
CVE-2020-12900HighAn arbitrary write vulnerability in the AMD Radeon Graphics Driver for Windows 10 potentially allows unprivileged users to gain Escalation of Privileges and cause Denial of Service.
CVE-2020-12929HighImproper parameters validation in some trusted applications of the PSP contained in the AMD Graphics Driver may allow a local attacker to bypass security restrictions and achieve arbitrary code execution.
CVE-2020-12960HighAMD Graphics Driver for Windows 10, amdfender.sys may improperly handle input validation on InputBuffer which may result in a denial of service (DoS).
CVE-2020-12980HighAn out of bounds write and read vulnerability in the AMD Graphics Driver for Windows 10 may lead to escalation of privilege or denial of service.
CVE-2020-12981HighAn insufficient input validation in the AMD Graphics Driver for Windows 10 may allow unprivileged users to unload the driver, potentially causing memory corruptions in high privileged processes, which can lead to escalation of privileges or denial of service.
CVE-2020-12982HighAn invalid object pointer free vulnerability in the AMD Graphics Driver for Windows 10 may lead to escalation of privilege or denial of service.
CVE-2020-12983HighAn out of bounds write vulnerability in the AMD Graphics Driver for Windows 10 may lead to escalation of privileges or denial of service.
CVE-2020-12985HighAn insufficient pointer validation vulnerability in the AMD Graphics Driver for Windows 10 may lead to escalation of privilege or denial of service.
CVE-2020-12986HighAn insufficient pointer validation vulnerability in the AMD Graphics Driver for Windows 10 may cause arbitrary code execution in the kernel, leading to escalation of privilege or denial of service.
CVE-2020-12962MediumEscape call interface in the AMD Graphics Driver for Windows may cause privilege escalation.
CVE-2020-12904MediumOut of Bounds Read in AMD Graphics Driver for Windows 10 in Escape 0x3004203 may lead to arbitrary information disclosure.
CVE-2020-12905MediumOut of Bounds Read in AMD Graphics Driver for Windows 10 in Escape 0x3004403 may lead to arbitrary information disclosure.
CVE-2020-12964MediumA potential privilege escalation/denial of service issue exists in the AMD Radeon Kernel Mode driver Escape 0x2000c00 Call handler. An attacker with low privilege could potentially induce a Windows BugCheck or write to leak information.
CVE-2020-12987MediumA heap information leak/kernel pool address disclosure vulnerability in the AMD Graphics Driver for Windows 10 may lead to KASLR bypass.
CVE-2020-12920MediumA potential denial of service issue exists in the AMD Display driver Escape 0x130007 Call handler. An attacker with low privilege could potentially induce a Windows BugCheck
CVE-2020-12899MediumArbitrary Read in AMD Graphics Driver for Windows 10 may lead to KASLR bypass or denial of service.
CVE-2020-12897MediumKernel Pool Address disclosure in AMD Graphics Driver for Windows 10 may lead to KASLR bypass.
CVE-2020-12963MediumAn insufficient pointer validation vulnerability in the AMD Graphics Driver for Windows may allow unprivileged users to compromise the system.