PT-2017-17620 · Amd · Amd Ryzen

Btarunr + 19 · Published 2017-03-25 · Updated 2017-03-29 · CVE-2017-7262

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions AMD Ryzen processor with AGESA microcode through 2017-01-27

Description The issue allows local users to cause a denial of service, resulting in a system hang, by executing a long series of FMA3 instructions. This can be demonstrated using the Flops test suite.

Recommendations For AMD Ryzen processor with AGESA microcode through 2017-01-27, consider avoiding the execution of long series of FMA3 instructions to prevent system hangs. As a temporary workaround, restrict the use of applications that heavily utilize FMA3 instructions until a fix is available.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2017-7262

Affected Products

Amd Ryzen

References · 7

• https://osv.dev/vulnerability/CVE-2017-7262 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-7262 · Security Note
• https://techpowerup.com/231536/amd-ryzen-machine-crashes-to-a-sequence-of-fma3-instructions · Note
• http://securityfocus.com/bid/97098 · Note
• http://forum.hwbot.org/showthread.php?t=167605 · Note
• http://forum.hwbot.org/showpost.php?p=480524 · Note
• https://news.ycombinator.com/item?id=13924192 · Note