PT-2020-18923 · Amd+1 · Amd Radeon Directx 11 Driver+3

Piotr Bania · Published 2020-07-20 · Updated 2020-07-24 · CVE-2020-6101

Positive Technologies (AI Summary)

CVSS v3.1

9.9

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions AMD Radeon DirectX 11 Driver atidxx64.dll version 26.20.15019.19000

Description A code execution issue exists in the Shader functionality. An attacker can trigger this by providing a specially crafted shader file, leading to code execution. This issue can be exploited from a HYPER-V guest using RemoteFX, allowing code execution on the HYPER-V host within the rdvgm.exe process. It may also be theoretically exploitable from a web browser using webGL and webassembly.

Recommendations For AMD Radeon DirectX 11 Driver atidxx64.dll version 26.20.15019.19000, consider disabling the Shader functionality as a temporary workaround until a patch is available. Restrict access to the RemoteFX feature to minimize the risk of exploitation from HYPER-V guests. Avoid using webGL and webassembly in web browsers that could potentially trigger this issue until the vulnerability is resolved.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-6101

Affected Products

Amd Radeon Directx 11 Driver

Hyper-V

Remotefx

Rdvgm.Exe

References · 3

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2020-1041 · Exploit
• https://osv.dev/vulnerability/CVE-2020-6101 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-6101 · Security Note