Free tools Windows power users keep installed
One-click scans. No signup required.
Yes. Dirty Pipe can affect ordinary Linux containers because they share the host’s kernel. Rebuilding a container image does not patch that kernel: check the host distribution’s advisory and installed kernel package, install its fixed package, and reboot as the vendor directs.
What Dirty Pipe is and what an attacker needs
Dirty Pipe, tracked as CVE-2022-0847, is a Linux kernel privilege-escalation vulnerability. A local, unprivileged process could exploit improperly initialized pipe-buffer flags to write to page-cache pages belonging to files opened read-only. If successful, an attacker could modify sensitive files and gain greater privileges.
The flaw requires a way to run code locally on the affected system. CVE-2022-0847 is not, by itself, a remote attack that lets someone exploit a machine over the network without first obtaining local code execution or another route onto it. The National Vulnerability Database assigned the CVE a CVSS 3.1 base score of 7.8 (High); that is a severity rating, not a count or estimate of affected systems. NVD also records that CISA added the CVE to its Known Exploited Vulnerabilities catalog on April 25, 2022, with a historical remediation due date of May 16, 2022. Those dates are historical, not a current deadline. NVD: CVE-2022-0847
Can Dirty Pipe affect containers?
Yes, when the container runs on a vulnerable Linux host kernel. A standard Linux container has its own isolated processes and filesystem view, but it does not ordinarily boot an independent kernel; it uses the host kernel. As a result, a kernel flaw can cross the boundary that container filesystem permissions are meant to enforce.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →#1 Best Overall
- Entry-level NAS Personal Storage：UGREEN NAS DH2300 is your first and best NAS made easy. It is designed for beginners who want a simple, private way to store videos, photos and personal files, which is intuitive for users moving from cloud storage or external drives and move away from scattered date across devices. This entry-level NAS 2-bay perfect for personal entertainment, photo storage, and easy data backup (doesn't support Docker or virtual machines).
- Set Your Devices Free, Expand Your Digital World: This unified storage hub supports massive capacity up to 64TB.*Storage drives not included. Stop Deleting, Start Storing. You can store 22 million 3MB images, or 2 million 30MB songs, or 43K 1.5GB movies or 67 million 1MB documents! UGREEN NAS is a better way to free up storage across all your devices such as phones, computers, tablets and also does automatic backups across devices regardless of the operating system—Window, iOS, Android or macOS.
- The Smarter Long-term Way to Store: Unlike cloud storage with recurring monthly fees, a UGREEN NAS enclosure requires only a one-time purchase for long-term use. For example, you only need to pay $459.98 for a NAS, while for cloud storage, you need to pay $719.88 per year, $2,159.64 for 3 years, $3,599.40 for 5 years. You will save $6,738.82 over 10 years with UGREEN NAS! *NAS cost based on DH2300 + 12TB HDD; cloud cost based on 12TB plan (e.g. $59.99/month).
- Blazing Speed, Minimal Power: Equipped with a high-performance processor, 1GbE port, and 4GB RAM on Board, this NAS handles multiple tasks with ease. File transfers reach up to 125MB/s—a 1GB file takes only 8 seconds. Don't let slow clouds hold you back; they often need over 100 seconds for the same task. The difference is clear.
- Let AI Better Organize Your Memories: UGREEN NAS uses AI to tag faces, locations, texts, and objects—so you can effortlessly find any photo by searching for who or what's in it in seconds. It also automatically finds and deletes similar or duplicate photo, backs up live photos and allows you to share them with your friends or family with just one tap. Everything stays effortlessly organized, powered by intelligent tagging and recognition.
A March 9, 2022 technical walkthrough by Snyk demonstrated changes to /etc/passwd in a read-only container image layer and described risk to mounted host volumes, including read-only mounts. That demonstration illustrates the kernel-level risk; it does not establish that every container configuration, image, or current product is vulnerable. Snyk: Dirty Pipe vulnerability walkthrough
Why image updates are not enough
A container image contains user-space software, not a replacement kernel for an ordinary Linux container. Rebuilding or pulling a newer image therefore does not update the kernel used by the host or managed node. The fix must be applied to that host kernel through the relevant Linux distribution or cloud provider.
Rank #2
- LINUX COMMANDS. ZERO SEARCHING. – Keep essential Linux and Unix command lines directly beneath your fingertips, so you can code, troubleshoot and work faster without breaking focus.
- YOUR DESK. SMARTER. – Commands are clearly grouped by networking, directory navigation, processes, users, files and system management for quick answers exactly when you need them.
- BUILT FOR EVERY LINUX USER – A practical go-to reference for beginners and seasoned programmers working with Kali, Red Hat, Ubuntu, openSUSE, Arch, Debian and other distributions.
- ROOM TO CODE, WORK & PLAY – The extended 31.5 x 11.8-inch Pixiecube desk mat provides ample space for a laptop or keyboard and mouse, while the soft 2 mm surface adds everyday comfort.
- BUILT FOR REAL-WORLD WORKDAYS – A rugged stitched edge helps prevent fraying, and the water-resistant, stain-resistant surface protects against scratches, spills and everyday wear—because smarter desks should work harder.
Read-only settings are not a Dirty Pipe fix
Do not treat a read-only container filesystem, a read-only mount, or non-root execution as a substitute for patching this vulnerability. They can be useful defense-in-depth for other risks, but the reported Dirty Pipe attack works at the kernel level and has been demonstrated against read-only file-backed data.
Which Linux kernel versions are affected?
Upstream summaries commonly identify Linux 5.8 and later as affected, with fixes in upstream releases 5.16.11, 5.15.25, and 5.10.102. These numbers describe upstream kernel branches; they are not a reliable test for a distribution’s installed kernel package. Distributions backport security fixes, and some releases do not contain the vulnerable code at all.
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchPC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Rank #3
- MODEL P74439-005: Compact and affordable HPE ProLiant MicroServer Gen11 powered by Intel Pentium Gold G7400 3.7GHz processor, ideal for file sharing, NAS, and basic business workloads
- READY OUT OF THE BOX: Includes 16GB DDR5 UDIMM memory (expandable to 128GB), one 1TB SATA 6G Business Critical HDD, embedded Intel VROC SATA, dedicated iLO-M.2 port kit, 180w external power adapter and 1/1/1 warranty for dependable plug-and-play server operation
- WHISPER-QUIET & SPACE-SAVING: Ultra-compact mini tower design fits easily in small office spaces; supports wall, flat, or vertical placement for deployment flexibility
- INTEGRATED REMOTE MANAGEMENT: Comes with HPE iLO 6 and embedded TPM 2.0 for secure, license-free remote server administration through shared port access
- EXPANDABLE DESIGN: Two PCIe slots (including PCIe 5.0) and four LFF-NHP drive bays provide robust options for storage and component scalability. Features new MR408i-p controller support for enhanced storage performance
The version history is more nuanced than a single cutoff. Ubuntu explains that the first relevant change appeared as early as 4.9, while a second change needed for the described attack was present from 5.8. This is one reason a kernel version that looks old or new relative to an upstream summary cannot establish a system’s status on its own. Ubuntu: Dirty Pipe (CVE-2022-0847)
How to check whether your Linux system is vulnerable
- Identify the exact host release and kernel package. Check the operating system release and installed kernel package on the physical host or container-platform node. For a managed Kubernetes or cloud service, identify the provider’s node image and kernel as well as the guest or worker release.
- Consult that vendor’s advisory for the exact release. Look up CVE-2022-0847 in the distribution or cloud provider’s current security guidance. Match the release and package build, including any vendor suffix or backport information; do not rely only on the upstream kernel version string.
- Follow the package status and remediation instructions. Determine whether the precise release is affected, fixed, or not affected, and install the vendor-provided fixed kernel package if required. A package can contain the fix without matching one of the upstream point-release numbers.
- Reboot as directed, then verify the running kernel. Ubuntu states that upgrading and rebooting are necessary for its remediation guidance. Follow the applicable vendor’s reboot instructions and confirm the machine is running the updated kernel afterward. Ubuntu security guidance
Why vendor status can differ
Package status is release-specific. Debian’s tracker, for example, marks stretch and buster as not affected because the vulnerable code was introduced later, while listing status by release for other Debian versions. Debian Security Tracker: CVE-2022-0847
Red Hat also gives a product-specific qualification: it says the known PIPE_BUF_FLAG_CAN_MERGE attack vector is not available in Red Hat Enterprise Linux 8, so currently known exploits relying on that flag do not work there. Its advisory also notes that the underlying initialization issue remained and that other novel exploitation could not be ruled out. That qualification applies to RHEL 8 and should not be generalized to other products or treated as a substitute for the vendor’s status and update guidance. Red Hat: CVE-2022-0847
What to do if you operate container hosts
- Inventory the Linux hosts and managed nodes that provide kernels to your container workloads.
- Check each host’s distribution or provider advisory and installed package status for CVE-2022-0847.
- Apply the fixed host kernel package and reboot according to vendor guidance; schedule workload disruption and node replacement or restart as your platform requires.
- Do not count an image rebuild, read-only container setting, or SELinux policy change as remediation. CERT-EU specifically said SELinux does not mitigate this flaw, and Ubuntu says no mitigation is available in place of upgrading and rebooting.
The 2022 CERT-EU advisory and Singapore Cyber Security Agency alert listed the upstream fixed releases 5.16.11, 5.15.25, and 5.10.102. Treat these as historical upstream fixes, not as package instructions for every distribution; use the current vendor advisory for your exact release. CERT-EU Security Advisory 2022-014 · Singapore CSA alert
Recommended Free Tools
Quick Recap
Best Value
- 【Ryzen 5 3500U Processor】KAMRUI Essenx E2 Mini PC is equipped with AMD Ryzen 5 3500U (4-cores/8-threads, up to 3.7GHz) with integrated Radeon Vega 8 Graphics(1200MHz, 8 Core). The 3500U CPU operates at a base frequency of 2.1 GHz and a Boost frequency of 3.7 GHz. This DDR supports upgradable up to 32GB, SSD supports up to 2TB.(NOT INCLUED), KAMRUI E2 3500U Mini PC is ideal for light office work and home entertainment. KAMRUI E2 3500U is more than 35% more powerful and smoother in operation than the Intel N150, 33% faster than Intel N95, 28% performance boost over Intel i3-10110U, and 42% stronger processing power than AMD Ryzen 3 3200U.
- 【16GB DDR4 & 256GB SSD】The KAMRUI E2 mini computers is equipped with 16GB DDR4(Expandable up to 32GB) for faster multitasking and smooth application switching. 256GB M.2 SSD ensures fast startup times,fast file transfers and plenty of storage space,eliminating slow loading times and ensuring fast responsiveness.Storage space can RAM supports up to 32 GB, SSD supports up to 2TB (Not included)make file storage easier.
- 【4K Dual Display & USB 3.2 Type-A Port】KAMRUI E2 3500U mini desktop pc is equipped with an HDMI 2.0+DP 1.4 interfaces for faster transmission, Support Dual 4K@60Hz Display, E2 mini desktop computers is ideal for visual home entertainment, home office, conference rooms, etc. USB3.2 Gen1 Type-A Port×2 with a transfer speed of up to 5Gbps (10 times faster than USB 2.0) for efficient data transfer. The RJ45 1000M Gigabit Ethernet Port ensures a stable network connection.
- 【WiFi+Bluetooth stable connection】The Kamrui E2 micro pc have reliable and stable wireless connection, open websites in seconds, watch movies without buffering and download files smoothly, connect your monitor from WiFi or Ethernet, use a wireless keyboard and mouse through bluetooth, which will be powerful workstation for you.
- 【Versatile Ports】This KAMRUI E2 Small pc is equipped with HDMI 2.0×1(4K@60Hz)、DP1.4×1(4K@60Hz)、Gigabit Ethernet Port (RJ45, 10/100/1000Mbps) ×1、USB3.2 Gen1 Type-A Port×2（5Gbps）、USB2.0 Type-A Port×2、3.5mm Audio Jack ×1、DC In ×1、Power Button ×1
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
