Vulnerability Name:

CVE-2018-8931 (CCN-140293)

Assigned:2018-03-13
Published:2018-03-13
Updated:2019-10-03
Summary:The AMD Ryzen, Ryzen Pro, and Ryzen Mobile processor chips have insufficient access control for the Secure Processor, aka RYZENFALL-1.
CVSS v3 Severity:9.0 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)
8.2 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:U/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
6.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N)
5.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N/E:U/RL:U/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): None
CVSS v2 Severity:9.3 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.2 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-732
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2018-8931

Source: CCN
Type: AMD Flaws Web site
Severe Security Advisory on AMD Processors

Source: MISC
Type: Third Party Advisory
https://amdflaws.com/

Source: CCN
Type: Trail of Bits Blog
“AMD Flaws” Technical Summary

Source: MISC
Type: Third Party Advisory
https://blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary/

Source: CCN
Type: AMD
Initial AMD Technical Assessment of CTS Labs Research

Source: MISC
Type: Vendor Advisory
https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research

Source: XF
Type: UNKNOWN
amd-ryzenfall-cve20188931-sec-bypass(140293)

Source: MISC
Type: Third Party Advisory
https://safefirmware.com/amdflaws_whitepaper.pdf

Source: CCN
Type: IBM Security Bulletin 869128 (Power 9 Systems)
This Power System update is being released to address CVE-2018-8931

Vulnerable Configuration:Configuration 1:
  • cpe:/o:amd:ryzen_mobile_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_mobile:-:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/o:amd:ryzen_pro_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_pro:-:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/o:amd:ryzen_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:amd:ryzen:*:*:*:*:*:*:*:*
  • OR cpe:/h:amd:ryzen_pro:-:*:*:*:*:*:*:*
  • OR cpe:/h:amd:ryzen_mobile:-:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    amd ryzen mobile firmware -
    amd ryzen mobile -
    amd ryzen pro firmware -
    amd ryzen pro -
    amd ryzen firmware -
    amd ryzen -
    amd ryzen *
    amd ryzen pro -
    amd ryzen mobile -