CVE-2019-11091 Information disclosure in Central Processing Units (CPUs)

What is CVE-2019-11091?

CVE-2019-11091 is a medium-severity vulnerability in Fedoraproject Fedora, published on 30 May 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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

Which versions are affected by CVE-2019-11091?

It affects 2 products.

Products include Fedoraproject Fedora, Intel Microarchitectural Data Sampling Uncacheable Memory Firmware.

How do I fix CVE-2019-11091?

Apply the vendor's patch.

Is CVE-2019-11091 being exploited?

There is no known exploitation of CVE-2019-11091 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2019-11091, DEBIAN-CVE-2019-11091, GHSA-25x5-mfj4-w63g, UBUNTU-CVE-2019-11091.