CVE-2018-12130 — Sensitive Information Exposure in Intel-microcode

CWE-200 — Sensitive Information ExposureCWE-208 — Observable Timing Discrepancy61 documents17 sources
Severity
5.6MEDIUMNVD
EPSS
0.5%
top 32.43%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
12
Linux KernelXENQemu+9 more
Timeline
PublishedMay 30
Latest updateFeb 24

Description

Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill 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

CVSS vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:NExploitability: 1.1 | Impact: 4.0

Affected Packages12 packages

▶debiandebian/intel-microcode< intel-microcode 3.20190514.1 (bookworm)
▶CVEListV5intel_corporation/central_processing_unitsA 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
▶debiandebian/xen< intel-microcode 3.20190514.1 (bookworm)
▶debiandebian/linux< intel-microcode 3.20190514.1 (bookworm)

Also affects: Fedora 29

🔴Vulnerability Details

15
GHSA
GHSA-j579-gjpv-mwhp: Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill buffers on some microprocessors utilizing speculative execution may allow an authenticated↗2022-05-24
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OSV
intel-microcode update↗2019-06-20
▶
OSV
CVE-2018-12130: Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill buffers on some microprocessors utilizing speculative execution may allow an authenticated↗2019-05-30
▶
OSV
intel-microcode update↗2019-05-22
▶
OSV
linux-hwe, linux-azure, linux-gcp, linux-oracle vulnerabilities↗2019-05-15
▶

📋Vendor Advisories

23
CISA ICS
Schneider Electric EcoStruxure Foxboro DCS (Update A)↗2026-02-24
▶
BSD
FreeBSD-SA-19:26.mcu: Intel CPU Microcode Update↗2019-11-12
▶
Ubuntu
Intel Microcode update↗2019-06-20
▶
Palo Alto
PAN-SA-2019-0012 Information about Recent Intel Side Channel Vulnerabilities↗2019-05-29
▶
Ubuntu
Intel Microcode update↗2019-05-22
▶

🕵️Threat Intelligence

14
Tenable
How VPR Helped Prioritize the Most Dangerous CVEs in 2019↗2020-04-30
▶
Qualys
Top 19+ Vulnerability CVEs in Santa’s Dashboard Tracking↗2019-12-27
▶
Qualys
Top 19+ Vulnerability CVEs in Santa’s Dashboard Tracking | Qualys↗2019-12-27
▶
Tenable
Objects in Mirror Are Closer Than They Appear: Reflecting on the Cybersecurity Threats from 2019↗2019-12-16
▶
Trendmicro
Patch Tuesday: Fixes for 'Wormable' Flaw, Zero-Day↗2019-05-15
▶

📄Research Papers

1
arXiv
ZombieLoad: Cross-Privilege-Boundary Data Sampling↗2019-05-14
▶

💬Community

7
Bugzilla
CVE-2018-12130 kernel: hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) [fedora-all]↗2019-05-14
▶
Bugzilla
CVE-2018-12130 libvirt: hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) [fedora-all]↗2019-05-14
▶
Bugzilla
CVE-2018-12130 qemu: hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) [fedora-all]↗2019-05-14
▶
Bugzilla
CVE-2018-12130 kernel: hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) [fedora-all]↗2019-05-14
▶
Bugzilla
CVE-2018-12130 libvirt: hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) [fedora-all]↗2019-05-14
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