Use case
Critical vulnerabilities and exposures mitigation with Red Hat Enterprise Linux
Strengthen your security foundation and protect against exploits
AI-accelerated tools have radically shifted the cybersecurity landscape, exposing an overwhelming volume of common vulnerabilities and exposures (CVEs). Teams have to expand their capacity to verify, test, and deploy updates with the same constraints and concerns around breaking production.
Red Hat® Enterprise Linux® provides a hardened foundation for CVE mitigation by helping to reduce security risks from the start, limit the impact area from known CVEs, and provide options to remediate at scale.
With Red Hat Enterprise Linux, you can:
Reduce attack paths and help contain exploitation with a hardened foundation.
Quickly triage and reduce the impact area of any given CVE.
Patch what you already run, without a risky upgrade.
What you can do
Reduce risk before the CVE is discovered
Red Hat Enterprise Linux includes proactive controls that help shrink the attack surface. Security Enhanced Linux (SELinux) and address space layout randomization (ASLR) are active by default. fapolicyd and Red Hat Identity Management (IdM) provide additional hardening when deployed and configured. Together, these controls help limit footholds, unauthorized execution, and privilege escalation — even when vulnerable code is present.
Disrupt the attack lifecycle during the unpatched window
When a CVE is public but a patch hasn't been approved for production yet, Red Hat Enterprise Linux’s runtime defenses can help contain the impact. OpenSCAP supports scheduled or automated compliance assessment and remediation when configured, helping to close misconfigurations that attackers often leverage for malicious intent. For kernel vulnerabilities, live patching can apply fixes with reduced reboot requirements.
Remediate the CVE without a risky upgrade
Red Hat backports security fixes into the stable package versions you already run. This means you can patch without jumping to a new release that might break the application. Image mode for Red Hat Enterprise Linux takes this further by treating the operating system as a version-controlled, immutable image. Patches are tested in a continuous integration and continuous delivery/deployment (CI/CD) pipeline and rolled forward to production with full rollback capability. Image mode turns emergency patching into a repeatable, automated process. Extended support options keep every system in the estate on a patchable, predictable timeline. With Red Hat Satellite, teams can respond to critical CVEs by controlling what content enters the environment, when it moves to production, and who has approved it.
Gain efficiency with automation
Red Hat Enterprise Linux System Roles automate security configuration so the same hardened settings land on every system you manage. That cuts the misconfigurations that attackers chain with a CVE.
Automating Red Hat Enterprise Linux with Red Hat Ansible® Automation Platform can help reduce operational bottlenecks and points of failure while consolidating ad hoc and disparate automation tools. Ansible Automation Platform can also apply remediation with a full-policy audit trail.
Reduce time to remediation
Red Hat's proactive remediation, at any scale, transforms security operations by integrating your existing portfolio—Red Hat Enterprise Linux, Red Hat Lightspeed, Red Hat Satellite, and Ansible Automation Platform—into a unified workflow that can collapse remediation time from weeks to hours. Find what is actually at risk, stage the fix through testing, then apply it at scale with an audit trail. That replaces a pile of tickets with a workflow you can repeat. You still promote on your schedule so production is not the first place a fix lands.
Proactive remediation, at any scale, with Red Hat.
Video duration: 1:37
Learn how it works
Dive deeper into the different components that make CVE mitigation with Red Hat Enterprise Linux possible.
Discovering the CVE with Red Hat Lightspeed
Red Hat Lightspeed is our end-to-end, AI-powered management tool that comes with your Red Hat Enterprise Linux subscription. It helps teams move from raw CVE volume to prioritized intelligence for their actual Red Hat Enterprise Linux deployments. Using package and advisory data, Red Hat security rules, workload tags, and configuration-aware analysis, it focuses teams first on what is exploitable in their environment, not every affected package at equal urgency.
Red Hat Lightspeed is available in 2 deployment models, so customers can choose visibility that matches their connectivity and sovereignty requirements. For organizations with outbound connectivity, Red Hat Lightspeed runs as a managed service on the Red Hat Hybrid Cloud Console. For air-gapped, restricted, or sovereignty-sensitive environments Red Hat Lightspeed can run locally on Red Hat Satellite (Satellite subscription required).
In my opinion, the most important security feature in Red Hat Enterprise Linux (RHEL) is Red Hat Lightspeed (formerly Red Hat Insights). When you use Red Hat Enterprise Linux (RHEL), you can install an agent in your Linux, and this agent runs on your Linux and gives you all the CVEs or security issues you have. For me, as an administrator, this is very helpful because with minimal clicks, I have the solutions and instructions on how to solve them.
Staging the solution with Red Hat Satellite
Red Hat Satellite provides on-premises errata management and content staging at scale across local, hybrid, or air-gapped infrastructure. In the current threat environment where AI-assisted discovery is finding volumes of CVEs, teams might rush solutions to production and then cause bottlenecks fixing what breaks as a result. With Red Hat Satellite, teams respond to critical CVEs by governing what content enters the environment, when it is promoted, and who has approved it.
Red Hat Satellite creates content views (point-in-time software snapshots) and promotes them through gated lifecycle environments. This ensures patches are fully vetted before hitting production, and that teams can respond to one CVE without a full stream update. Red Hat Satellite can also support compliance reporting through OpenSCAP-based policies and scans when configured, measuring systems against baselines such as CIS profiles.
The features in Red Hat Enterprise Linux (RHEL) that I use to navigate my security risks include Satellite, which has kept patch management very easy to keep up with. In a traditional aspect, we have people patching manually and burning them to CDs. I have used Satellite to keep our patch baseline really up to date, managing CVEs, vulnerabilities, and things that come out almost on a daily basis, keeping those closed, patched, and up to date.
Apply remediations at scale
Ansible Automation Platform applies remediations for your Red Hat Enterprise Linux estate across your hybrid infrastructure.
Using Event-Driven Ansible, Ansible Automation Platform can react to changing environment conditions. For example, when Red Hat Satellite completes a repository sync, a webhook can trigger a pre-authorized workflow such as patch deployment, configuration correction, or host isolation. Jobs can use Red Hat Ansible Certified Content Collections, with a job history your operations and compliance teams can audit.
Red Hat Enterprise Linux (RHEL) helps me address vulnerabilities, particularly high CVEs with scores of 10 and nine. The build-out capabilities are beneficial, and Ansible integration works effectively with RHEL.
Contain configuration drift
Configuration drift can make patching extremely difficult. Image mode for Red Hat Enterprise Linux builds, deploys, and updates the OS as a container image. The system matches the image you shipped. Most of the OS is immutable, so fixes go out as a new image you can test, roll forward, and roll back.
You can bake compliance settings into that image at build time so physical and virtual systems start from the same baseline. That cuts the one-off changes attackers chain with a CVE. Image mode is currently available for Red Hat Enterprise Linux 9.6 and 10 and later.
Backporting
Red Hat streams security fixes into the stable package versions you already run. You can close the CVE without moving to a new major version of that software, which could break applications. The solution is built for the supported Red Hat Enterprise Linux streams that are affected, so you patch what you are on instead of having to upgrade. That reduces the chance a security update takes production down.
Additional capabilities and features
Strengthen software supply chain security
Red Hat Enterprise Linux is built so you can prove what you installed and whether it was tampered with.
- Every package is digitally signed by Red Hat. The system verifies that signature before install.
- Red Hat publishes a software bill of materials (SBOM) and Vulnerability Exploitability Exchange (VEX) data so you can see what’s in the product and which CVEs are actually exploitable in that build.
Controls for reducing the attack surface
These embedded tools help reduce the risk area before a CVE is discovered. They have the following roles:
- SELinux: Mandatory access control built into Red Hat Enterprise Linux. It limits what a process can touch, even after a vulnerability exists.
- ASLR (Address Space Layout Randomization): Makes memory-corruption exploits harder by randomizing memory layout, thus making it hard for attackers to predict where to look.
- fapolicyd: Application allowlisting. When enabled and configured, it can block untrusted programs from running, including things not installed as signed RPMs.
Simplify Federal Information Processing Standards (FIPS) compliance
FIPS 140 is the U.S. government bar for cryptographic modules. Regulated organizations need validated cryptography in production. If the module changes, they can be stuck waiting on recertification before they can take the next security fix.
On Red Hat Enterprise Linux, the OpenSSL FIPS provider is shipped as its own module. This means that security fixes and minor updates can go out while you keep using the already-validated module, instead of waiting on a full recertification for every OpenSSL patch.
Resources
Ebook
Reduce the CVE window with Red Hat Enterprise Linux
Analyst material
Peerspot report: Hardened by default, trusted at scale
Overview
Defend against AI-detected threats
Blog
Navigating the Mythos-haunted world of platform security
What's next?
Try it
Experience Red Hat Enterprise Linux free for 60 days.
Buy it
Red Hat Enterprise Linux is available directly from Red Hat, from our partners, or in cloud marketplaces.
