Vulnerability Name:

CVE-2017-7262 (CCN-123715)

Assigned:2017-03-24
Published:2017-03-24
Updated:2017-03-29
Summary:The AMD Ryzen processor with AGESA microcode through 2017-01-27 allows local users to cause a denial of service (system hang) via an application that makes a long series of FMA3 instructions, as demonstrated by the Flops test suite.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-7262

Source: MISC
Type: Third Party Advisory
http://forum.hwbot.org/showpost.php?p=480524

Source: MISC
Type: Third Party Advisory
http://forum.hwbot.org/showthread.php?t=167605

Source: BID
Type: Third Party Advisory, VDB Entry
97098

Source: CCN
Type: BID-97098
AMD Ryzen Processor CVE-2017-7262 Local Denial of Service Vulnerability

Source: XF
Type: UNKNOWN
amd-cve20177262-dos(123715)

Source: MISC
Type: Third Party Advisory
https://news.ycombinator.com/item?id=13924192

Source: CCN
Type: TechPowerUp Web site
AMD Ryzen Machine Crashes to a Sequence of FMA3 Instructions

Source: MISC
Type: Third Party Advisory
https://www.techpowerup.com/231536/amd-ryzen-machine-crashes-to-a-sequence-of-fma3-instructions

Vulnerable Configuration:Configuration 1:
  • cpe:/a:amd:ryzen:*:*:*:*:*:*:*:* (Version <= 2017-01-27)

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.artful:def:20177262000
    V
    CVE-2017-7262 on Ubuntu 17.10 (artful) - medium.
    2017-03-24
    oval:com.ubuntu.trusty:def:20177262000
    V
    CVE-2017-7262 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-03-24
    oval:com.ubuntu.xenial:def:20177262000
    V
    CVE-2017-7262 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-03-24
    oval:com.ubuntu.xenial:def:201772620000000
    V
    CVE-2017-7262 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-03-24
    BACK
    amd ryzen *