VulnerabilityPublished 16 Jan 2018Updated 21 Nov 2025

Red Hat Security Advisory: Red Hat CloudForms 4.0 security update

Affects Red HatSource GCVE Database

Mentioned vulnerabilities

Severity

High

Rated by Threat Radar

Data as of 14 Nov 2026, 17:46 UTC

What to do

AI-suggested

Red Hat has released updated kernel packages that provide software mitigations for these hardware vulnerabilities on x86-64 architectures. Users should apply these updates to reduce risk. Note that the underlying hardware issue cannot be fully fixed by software, and mitigations may impact system performance. No additional action beyond applying the updated kernel packages is indicated.

Description

This advisory addresses speculative execution vulnerabilities in modern x86-64 microprocessors affecting Red Hat CloudForms 4.0 virtual machines. The vulnerabilities, known as Spectre (CVE-2017-5753 and CVE-2017-5715) and Meltdown (CVE-2017-5754), allow an unprivileged attacker to read privileged memory via targeted cache side-channel attacks. These hardware flaws cannot be fully fixed by software, but updated kernel packages provide mitigations with potential performance impacts. AMD x86-64 processors are not affected by CVE-2017-5754. Red Hat thanks Google Project Zero for reporting these issues.

Impact

An unprivileged attacker could exploit these vulnerabilities to read privileged memory, potentially exposing sensitive information from kernel space or other processes. This compromises system confidentiality by bypassing normal privilege boundaries. The vulnerabilities affect the hardware level and thus impact all software running on affected processors unless mitigated. The mitigations provided by the updated kernel reduce the risk but may incur a performance penalty. There is no indication of active exploitation in the wild at the time of this advisory.

Summary

The Red Hat CloudForms 4.0 kernel packages include mitigations for three speculative execution vulnerabilities affecting x86-64 processors. CVE-2017-5753 (Spectre Variant 1) exploits bounds-check bypass to read privileged memory across syscall boundaries. CVE-2017-5715 (Spectre Variant 2) uses branch target injection to read privileged memory across syscall and guest/host boundaries. CVE-2017-5754 (Meltdown) exploits speculative execution of permission faults to read kernel memory. These vulnerabilities arise from hardware design and cannot be fully resolved by software updates. The updated kernel mitigations reduce risk but may degrade performance. AMD processors are not vulnerable to Meltdown (CVE-2017-5754).

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AI analysisMachine-generated, updated 14 Nov 2026, 17:46 UTC

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