5.6
MEDIUM
CVE-2018-12126
Intel Microarchitectural Store Buffer Data Sampling (MSBDS) Information Disclosure Vulnerability
Description

Microarchitectural Store Buffer Data Sampling (MSBDS): Store buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf

INFO

Published Date :

May 30, 2019, 4:29 p.m.

Last Modified :

Nov. 7, 2023, 2:52 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

4.0

Exploitability Score :

1.1
Public PoC/Exploit Available at Github

CVE-2018-12126 has a 20 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-2018-12126 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 Fedoraproject fedora
1 Intel microarchitectural_store_buffer_data_sampling_firmware
: Total Affected Vendor : 2 | Products : 2
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-2018-12126.

URL Resource
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00052.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00053.html
http://packetstormsecurity.com/files/155281/FreeBSD-Security-Advisory-FreeBSD-SA-19-26.mcu.html
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2019-003.txt
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190712-01-mds-en
https://access.redhat.com/errata/RHSA-2019:1455
https://access.redhat.com/errata/RHSA-2019:2553
https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-616472.pdf
https://kc.mcafee.com/corporate/index?page=content&id=SB10292
https://lists.debian.org/debian-lts-announce/2019/06/msg00018.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OH73SGTJ575OBCPSJFX6LX7KP2KZIEN4/
https://seclists.org/bugtraq/2019/Jun/28
https://seclists.org/bugtraq/2019/Jun/36
https://seclists.org/bugtraq/2019/Nov/15
https://seclists.org/bugtraq/2019/Nov/16
https://seclists.org/bugtraq/2020/Jan/21
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:26.mcu.asc
https://security.gentoo.org/glsa/202003-56
https://usn.ubuntu.com/3977-3/
https://www.debian.org/security/2020/dsa-4602
https://www.freebsd.org/security/advisories/FreeBSD-SA-19:07.mds.asc
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00233.html Vendor Advisory
https://www.synology.com/security/advisory/Synology_SA_19_24

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).

Profile Photo
j1nh0/pdf_esxi

None

Updated: 5 months ago
0 stars 0 fork 0 watcher
Born at : June 4, 2024, 4:55 a.m. This repo has been linked 4 different CVEs too.
Profile Photo
j1nh0/pdf_systems

None

Updated: 6 months, 2 weeks ago
1 stars 0 fork 0 watcher
Born at : April 18, 2024, 8:09 p.m. This repo has been linked 4 different CVEs too.
Profile Photo
j1nh0/pdf_esxi

None

Updated: 8 months, 1 week ago
1 stars 0 fork 0 watcher
Born at : Feb. 26, 2024, 8:39 p.m. This repo has been linked 4 different CVEs too.
Profile Photo
amstelchen/smc_gui

A simple GUI for spectre-meltdown-checker

Python

Updated: 4 months ago
0 stars 0 fork 0 watcher
Born at : Feb. 12, 2024, 4:39 p.m. This repo has been linked 16 different CVEs too.
Profile Photo
kin-cho/my-spectre-meltdown-checker

None

Dockerfile Shell

Updated: 1 year, 3 months ago
0 stars 0 fork 0 watcher
Born at : July 19, 2023, 5:42 p.m. This repo has been linked 15 different CVEs too.
Profile Photo
kali973/spectre-meltdown-checker

None

Dockerfile Python Shell

Updated: 1 year, 4 months ago
0 stars 0 fork 0 watcher
Born at : June 22, 2023, 2:40 p.m. This repo has been linked 15 different CVEs too.
Profile Photo
es0j/hyperbleed

None

Makefile C Shell

Updated: 2 months, 1 week ago
13 stars 0 fork 0 watcher
Born at : May 29, 2023, 3:50 p.m. This repo has been linked 15 different CVEs too.
Profile Photo
vincent-deng/veracode-container-security-finding-parser

Map Vulnerabilities into Different Layers of the Container Image

Python

Updated: 1 year, 10 months ago
1 stars 0 fork 0 watcher
Born at : Oct. 5, 2022, 12:07 p.m. This repo has been linked 1276 different CVEs too.
Profile Photo
merlinepedra/spectre-meltdown-checker

None

Dockerfile Shell

Updated: 2 years, 3 months ago
1 stars 0 fork 0 watcher
Born at : July 25, 2022, 11:08 a.m. This repo has been linked 15 different CVEs too.
Profile Photo
merlinepedra25/spectre-meltdown-checker

None

Dockerfile Shell

Updated: 2 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : July 25, 2022, 11:08 a.m. This repo has been linked 15 different CVEs too.
Profile Photo
giterlizzi/secdb-feeds

SecDB

Updated: 2 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : July 1, 2022, 8:37 p.m. This repo has been linked 82 different CVEs too.
Profile Photo
edsonjt81/spectre-meltdown

None

Dockerfile Shell

Updated: 3 years, 3 months ago
0 stars 0 fork 0 watcher
Born at : July 13, 2021, 9:19 p.m. This repo has been linked 15 different CVEs too.
Profile Photo
simeononsecurity/Windows-Spectre-Meltdown-Mitigation-Script

Simple script to implement protections against speculative execution side-channel vulnerabilities in Windows systems.

powershell automation mitigation spectre meltdown

PowerShell

Updated: 3 months, 1 week ago
3 stars 0 fork 0 watcher
Born at : Nov. 18, 2020, 6:20 a.m. This repo has been linked 10 different CVEs too.
Profile Photo
flowyroll/icebreak

None

Makefile C Assembly

Updated: 2 years, 7 months ago
10 stars 4 fork 4 watcher
Born at : March 27, 2020, 5:30 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
codexlynx/hardware-attacks-state-of-the-art

Microarchitectural exploitation and other hardware attacks.

meltdown spectre rowhammer microarchitecture infosec hardware state-of-the-art research proof-of-concept exploitation foreshadow sgx intel amd arm side-channel-attacks speculative-execution evictions cache-attack data-sampling

Updated: 2 months, 3 weeks ago
78 stars 9 fork 9 watcher
Born at : Feb. 2, 2020, 5:31 p.m. This repo has been linked 46 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-2018-12126 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-12126 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 [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/OH73SGTJ575OBCPSJFX6LX7KP2KZIEN4/ [No types assigned]
    Removed Reference Intel Corporation https://lists.fedoraproject.org/archives/list/[email protected]/message/OH73SGTJ575OBCPSJFX6LX7KP2KZIEN4/
  • CVE Modified by [email protected]

    Mar. 26, 2020

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202003-56 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 14, 2020

    Action Type Old Value New Value
    Added Reference https://seclists.org/bugtraq/2020/Jan/21 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 14, 2020

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2020/dsa-4602 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 18, 2019

    Action Type Old Value New Value
    Added Reference https://www.synology.com/security/advisory/Synology_SA_19_24 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 13, 2019

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/155281/FreeBSD-Security-Advisory-FreeBSD-SA-19-26.mcu.html [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 12, 2019

    Action Type Old Value New Value
    Added Reference https://seclists.org/bugtraq/2019/Nov/16 [No Types Assigned]
    Added Reference https://seclists.org/bugtraq/2019/Nov/15 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 12, 2019

    Action Type Old Value New Value
    Added Reference https://security.FreeBSD.org/advisories/FreeBSD-SA-19:26.mcu.asc [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 08, 2019

    Action Type Old Value New Value
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 11, 2019

    Action Type Old Value New Value
    Added Reference https://kc.mcafee.com/corporate/index?page=content&id=SB10292 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 22, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:2553 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 26, 2019

    Action Type Old Value New Value
    Added Reference https://www.freebsd.org/security/advisories/FreeBSD-SA-19:07.mds.asc [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 24, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00052.html [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00053.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 15, 2019

    Action Type Old Value New Value
    Added Reference http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190712-01-mds-en [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 09, 2019

    Action Type Old Value New Value
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-616472.pdf [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 26, 2019

    Action Type Old Value New Value
    Added Reference http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2019-003.txt [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 24, 2019

    Action Type Old Value New Value
    Added Reference https://seclists.org/bugtraq/2019/Jun/36 [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 24, 2019

    Action Type Old Value New Value
    Added Reference https://seclists.org/bugtraq/2019/Jun/28 [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 21, 2019

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2019/06/msg00018.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 20, 2019

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3977-3/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 11, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:1455 [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 03, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00014.html [No Types Assigned]
  • Initial Analysis by [email protected]

    May. 31, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:M/Au:N/C:C/I:N/A:N)
    Added CVSS V3 AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
    Changed Reference Type https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00233.html No Types Assigned https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00233.html Vendor Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/OH73SGTJ575OBCPSJFX6LX7KP2KZIEN4/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/OH73SGTJ575OBCPSJFX6LX7KP2KZIEN4/ Third Party Advisory
    Added CWE CWE-200
    Added CPE Configuration AND OR *cpe:2.3:o:intel:microarchitectural_store_buffer_data_sampling_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:microarchitectural_store_buffer_data_sampling:-:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 30, 2019

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/OH73SGTJ575OBCPSJFX6LX7KP2KZIEN4/ [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-2018-12126 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-2018-12126 weaknesses.

CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-59: Session Credential Falsification through Prediction Session Credential Falsification through Prediction CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-116: Excavation Excavation CAPEC-169: Footprinting Footprinting CAPEC-224: Fingerprinting Fingerprinting CAPEC-285: ICMP Echo Request Ping ICMP Echo Request Ping CAPEC-287: TCP SYN Scan TCP SYN Scan CAPEC-290: Enumerate Mail Exchange (MX) Records Enumerate Mail Exchange (MX) Records CAPEC-291: DNS Zone Transfers DNS Zone Transfers CAPEC-292: Host Discovery Host Discovery CAPEC-293: Traceroute Route Enumeration Traceroute Route Enumeration CAPEC-294: ICMP Address Mask Request ICMP Address Mask Request CAPEC-295: Timestamp Request Timestamp Request CAPEC-296: ICMP Information Request ICMP Information Request CAPEC-297: TCP ACK Ping TCP ACK Ping CAPEC-298: UDP Ping UDP Ping CAPEC-299: TCP SYN Ping TCP SYN Ping CAPEC-300: Port Scanning Port Scanning CAPEC-301: TCP Connect Scan TCP Connect Scan CAPEC-302: TCP FIN Scan TCP FIN Scan CAPEC-303: TCP Xmas Scan TCP Xmas Scan CAPEC-304: TCP Null Scan TCP Null Scan CAPEC-305: TCP ACK Scan TCP ACK Scan CAPEC-306: TCP Window Scan TCP Window Scan CAPEC-307: TCP RPC Scan TCP RPC Scan CAPEC-308: UDP Scan UDP Scan CAPEC-309: Network Topology Mapping Network Topology Mapping CAPEC-310: Scanning for Vulnerable Software Scanning for Vulnerable Software CAPEC-312: Active OS Fingerprinting Active OS Fingerprinting CAPEC-313: Passive OS Fingerprinting Passive OS Fingerprinting CAPEC-317: IP ID Sequencing Probe IP ID Sequencing Probe CAPEC-318: IP 'ID' Echoed Byte-Order Probe IP 'ID' Echoed Byte-Order Probe CAPEC-319: IP (DF) 'Don't Fragment Bit' Echoing Probe IP (DF) 'Don't Fragment Bit' Echoing Probe CAPEC-320: TCP Timestamp Probe TCP Timestamp Probe CAPEC-321: TCP Sequence Number Probe TCP Sequence Number Probe CAPEC-322: TCP (ISN) Greatest Common Divisor Probe TCP (ISN) Greatest Common Divisor Probe CAPEC-323: TCP (ISN) Counter Rate Probe TCP (ISN) Counter Rate Probe CAPEC-324: TCP (ISN) Sequence Predictability Probe TCP (ISN) Sequence Predictability Probe CAPEC-325: TCP Congestion Control Flag (ECN) Probe TCP Congestion Control Flag (ECN) Probe CAPEC-326: TCP Initial Window Size Probe TCP Initial Window Size Probe CAPEC-327: TCP Options Probe TCP Options Probe CAPEC-328: TCP 'RST' Flag Checksum Probe TCP 'RST' Flag Checksum Probe CAPEC-329: ICMP Error Message Quoting Probe ICMP Error Message Quoting Probe CAPEC-330: ICMP Error Message Echoing Integrity Probe ICMP Error Message Echoing Integrity Probe CAPEC-472: Browser Fingerprinting Browser Fingerprinting CAPEC-497: File Discovery File Discovery CAPEC-508: Shoulder Surfing Shoulder Surfing CAPEC-573: Process Footprinting Process Footprinting CAPEC-574: Services Footprinting Services Footprinting CAPEC-575: Account Footprinting Account Footprinting CAPEC-576: Group Permission Footprinting Group Permission Footprinting CAPEC-577: Owner Footprinting Owner Footprinting CAPEC-616: Establish Rogue Location Establish Rogue Location CAPEC-643: Identify Shared Files/Directories on System Identify Shared Files/Directories on System CAPEC-646: Peripheral Footprinting Peripheral Footprinting CAPEC-651: Eavesdropping Eavesdropping
Exploit Prediction

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

0.08 }} 0.02%

score

0.33095

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: