6.5
MEDIUM
CVE-2021-0086
Intel Floating-Point Information Disclosure Vulnerability
Description

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.

INFO

Published Date :

June 9, 2021, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 5:41 a.m.

Remotely Exploitable :

No

Impact Score :

4.0

Exploitability Score :

2.0
Public PoC/Exploit Available at Github

CVE-2021-0086 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-0086 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Intel brand_verification_tool
2 Intel pentium_processors_firmware
3 Intel celeron_processors_firmware
4 Intel xeon_processors_firmware
5 Intel core_processors_firmware
6 Intel itanium_processors_firmware
7 Intel pentium_processors
8 Intel celeron_processors
9 Intel xeon_processors
10 Intel core_processors
11 Intel itanium_processors
1 Fedoraproject fedora
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-0086.

URL Resource
http://www.openwall.com/lists/oss-security/2021/06/08/7 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/06/09/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/06/10/1 Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00516.html Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00546.html Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00546.html Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/06/08/7 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/06/09/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/06/10/1 Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00516.html Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00546.html Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00546.html Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Rage Against The Machine Clear: A Systematic Analysis of Machine Clears and Their Implications for Transient Execution Attacks

Makefile Assembly C Shell HTML JavaScript Python

Updated: 1 month ago
16 stars 4 fork 4 watcher
Born at : May 31, 2021, 3:27 p.m. This repo has been linked 5 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-0086 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-0086 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/06/08/7
    Added Reference http://www.openwall.com/lists/oss-security/2021/06/09/2
    Added Reference http://www.openwall.com/lists/oss-security/2021/06/10/1
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/
    Added Reference https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00516.html
    Added Reference https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00546.html
    Added Reference https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00546.html
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Intel Corporation https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/ [No types assigned]
    Added Reference Intel Corporation https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/ [No types assigned]
    Removed Reference Intel Corporation https://lists.fedoraproject.org/archives/list/[email protected]/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/
    Removed Reference Intel Corporation https://lists.fedoraproject.org/archives/list/[email protected]/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/
  • Initial Analysis by [email protected]

    Jul. 01, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/06/08/7 No Types Assigned http://www.openwall.com/lists/oss-security/2021/06/08/7 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/06/09/2 No Types Assigned http://www.openwall.com/lists/oss-security/2021/06/09/2 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/06/10/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/06/10/1 Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/ Mailing List, Third Party Advisory
    Changed Reference Type https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00516.html No Types Assigned https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00516.html Vendor Advisory
    Changed Reference Type https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00546.html No Types Assigned https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00546.html Vendor Advisory
    Added CWE NIST CWE-203
    Added CPE Configuration OR *cpe:2.3:a:intel:brand_verification_tool:*:*:*:*:*:*:*:* versions up to (excluding) 11.0.0.1225
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:intel:pentium_processors_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:pentium_processors:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:intel:celeron_processors_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:celeron_processors:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_processors_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_processors:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:intel:core_processors_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:core_processors:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:intel:itanium_processors_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:itanium_processors:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jun. 17, 2021

    Action Type Old Value New Value
    Changed Description Improper permissions in the installer for the Intel(R) Brand Verification Tool before version 11.0.0.1225 may allow an authenticated user to potentially enable escalation of privilege via local access. 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.
    Added Reference https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00516.html [No Types Assigned]
    Added Reference http://www.openwall.com/lists/oss-security/2021/06/08/7 [No Types Assigned]
    Added Reference http://www.openwall.com/lists/oss-security/2021/06/09/2 [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 17, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 16, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 10, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/06/10/1 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-0086 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-0086 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.05 }} 0.00%

score

0.15191

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability