Vulnerability Name:

CVE-2021-0086 (CCN-203303)

Assigned:2020-10-22
Published:2021-06-08
Updated:2021-07-01
Summary:Observable response discrepancy in floating-point operations for some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-203
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-0086

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20210608 Xen Security Advisory 375 v2 (CVE-2021-0089) - Speculative Code Store Bypass

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20210609 Xen Security Advisory 375 v3 (CVE-2021-0089,CVE-2021-26313) - Speculative Code Store Bypass

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20210610 Xen Security Advisory 375 v4 (CVE-2021-0089,CVE-2021-26313) - Speculative Code Store Bypass

Source: XF
Type: UNKNOWN
intel-cve20210086-info-disc(203303)

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-41d4347447

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-993693c914

Source: CCN
Type: Lenovo Security Advisory: LEN-60191
Speculative Code Store Bypass (SCSB) and Floating-Point Value Injection (FPVI) Advisory

Source: CCN
Type: INTEL-SA-00516
Intel Processors Software Developer Guidance Advisory

Source: CONFIRM
Type: Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00516.html

Source: MISC
Type: Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00546.html

Vulnerable Configuration:Configuration 1:
  • cpe:/a:intel:brand_verification_tool:*:*:*:*:*:*:*:* (Version < 11.0.0.1225)

  • Configuration 2:
  • cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/o:intel:pentium_processors_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:pentium_processors:-:*:*:*:*:*:*:*

  • Configuration 4:
  • cpe:/o:intel:celeron_processors_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:celeron_processors:-:*:*:*:*:*:*:*

  • Configuration 5:
  • cpe:/o:intel:xeon_processors_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:xeon_processors:-:*:*:*:*:*:*:*

  • Configuration 6:
  • cpe:/o:intel:core_processors_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:core_processors:-:*:*:*:*:*:*:*

  • Configuration 7:
  • cpe:/o:intel:itanium_processors_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:itanium_processors:-:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    intel brand verification tool *
    fedoraproject fedora 33
    fedoraproject fedora 34
    intel pentium processors firmware -
    intel pentium processors -
    intel celeron processors firmware -
    intel celeron processors -
    intel xeon processors firmware -
    intel xeon processors -
    intel core processors firmware -
    intel core processors -
    intel itanium processors firmware -
    intel itanium processors -