Information disclosure in Intel Microarchitectural Load Port Data Sampling
CVE-2018-12127
Microarchitectural Load Port Data Sampling (MLPDS): Load ports 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
Vulnerability class: Information Disclosure
EPSS: 0.015 (71.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Intel Microarchitectural_load_port_data_sampling
- Intel Microarchitectural_load_port_data_sampling_firmware
- Intel Corporation Central Processing Units (Cpus) — versions 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
- Fedoraproject Fedora — versions 29
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@intel.com (x_refsource_CONFIRM, Vendor Advisory)
- secure@intel.com (x_refsource_CONFIRM)
- secure@intel.com (vendor-advisory, x_refsource_FEDORA)
- secure@intel.com (vendor-advisory, x_refsource_SUSE)
- secure@intel.com (x_refsource_REDHAT, vendor-advisory)
- secure@intel.com (x_refsource_UBUNTU, vendor-advisory)
- secure@intel.com (mailing-list, x_refsource_MLIST)
- secure@intel.com (mailing-list, x_refsource_BUGTRAQ)
- secure@intel.com (mailing-list, x_refsource_BUGTRAQ)
- secure@intel.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2018-12127?
- CVE-2018-12127 is a medium-severity vulnerability in Intel Microarchitectural Load Port Data Sampling, classified under Information Disclosure. CVSS score: 5.6/10. Published 2019-05-30.
- How severe is CVE-2018-12127?
- Medium severity. CVSS v3 base score is 5.6 out of 10.
- Is CVE-2018-12127 known to be exploited?
- 21 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.