CVE-2019-11091

Severity: medium (CVSS 5.6 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-05-30 · updated 2026-06-17

Description

Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory 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

Affected products

Fedoraproject Fedora: 29
Intel Microarchitectural Data Sampling Uncacheable Memory Firmware: all versions

References

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://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/

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