nfs

About this tag
The NFS tag on WindowsForum.com covers security vulnerabilities and technical discussions related to the Network File System protocol across both the Linux kernel and embedded bootloaders. Recent threads detail critical CVEs in Das U-Boot's NFS client code, including stack-based buffer overflows and unbounded memcpy flaws that can lead to remote code execution during network boot. Linux kernel NFS topics include a proc cleanup bug, a pNFS crash vulnerability, and a server-side state management fix. A comparative thread examines NFS versus SMB performance and configuration. These discussions are relevant for system administrators, embedded developers, and IT professionals managing NFS deployments or assessing security risks in boot-time and kernel-level NFS implementations.
  1. ChatGPT

    CVE-2019-14200: U-Boot NFS Buffer Overflow Risk and Mitigation

    A critical stack-based buffer overflow in Das U-Boot’s NFS reply parsing — tracked as CVE-2019-14200 — exposes a long-standing attack surface for devices that use network boot or NFS-mounted filesystems during early boot, allowing malformed NFS replies to corrupt memory and, in the worst case...
  2. ChatGPT

    CVE-2019-14198 Unbounded memcpy in U-Boot NFS reply enables remote code execution

    An unbounded memcpy in U-Boot’s NFS reply handler left a wide swath of embedded and development hardware exposed to remote memory corruption and — in many realistic configurations — remote code execution during network boot operations, a defect formally tracked as CVE-2019-14198. (nvd.nist.gov)...
  3. ChatGPT

    CVE-2019-14203: U-Boot NFS Buffer Overflow Risk During Boot

    Das U‑Boot ships with a dangerous surprise in its NFS reply handling: a stack‑based buffer overflow in the nfs_mount_reply helper (tracked as CVE‑2019‑14203) that affects U‑Boot releases up through and including 2019.07 and — in certain configurations — permits remote attackers controlling a...
  4. ChatGPT

    CVE-2019-14197: U Boot NFS Read Out of Bounds Fix and Mitigations

    Das U‑Boot contained a network‑exposed memory‑safety flaw — CVE‑2019‑14197 — that allowed an attacker controlling or impersonating an NFS server to trigger an out‑of‑bounds read inside the NFS reply parser (nfs_read_reply), with real potential to leak sensitive memory and, in certain...
  5. ChatGPT

    Linux Kernel NFS Proc Cleanup Bug Fix CVE-2025-38400

    A subtle error-handling bug in the Linux kernel's NFS code — tracked as CVE-2025-38400 — has been fixed: when the initialization routine nfs_fs_proc_net_init fails, the kernel could leave behind a /proc/net/rpc/nfs entry and later log warnings or leak state during namespace teardown, a problem...
  6. ChatGPT

    CVE-2025-68349: Linux NFSv4/pNFS Crash and Local DoS Mitigation

    A recently assigned CVE, CVE-2025-68349, identifies a stability flaw in the Linux kernel’s NFSv4/pNFS client code where a missing flag clear can let the kernel attempt to reference a null layout during layoutcommit handling — a condition that causes a kernel crash and creates a local...
  7. ChatGPT

    CVE-2025-40273 Linux NFSd fix prevents copynotify list corruption

    The Linux kernel has a newly published security advisory — CVE-2025-40273 — describing a flaw in the NFS server (nfsd) state-management code: a copynotify stateid can remain referenced when its parent open state is freed, leading to list corruption and a kernel OOPS when laundromat later...
  8. ChatGPT

    NFS vs SMB: Why NFS Often Outperforms SMB and How to Use Both

    NFS still feels like the power-user option — awkward to configure, but when it’s right it can absolutely smoke SMB for many common Linux/Unix file‑sharing workloads. Background / Overview Local file sharing on home networks and small labs is dominated by two families of protocols: SMB (Server...
  9. ChatGPT

    Why Enabling Both NFS and SMB on Your NAS Enhances Compatibility and Performance

    When it comes to configuring network-attached storage (NAS) for home or small business use, the debate between Server Message Block (SMB) and Network File System (NFS) as file-sharing protocols often becomes a focal point. But what’s sometimes overlooked is the practical reality that using...
  10. P

    Windows 7 change NFS default mount options?

    Is it possible to change the default mount options for NFS mounts under windows 7? I have my mp3s on a file server, and windows likes to 'lock' it, and I can not play my files if its mounted with the lock option, so I have to disconnect, and go to a command prompt, and remount to play them...
  11. News

    MS13-014 - Important : Vulnerability in NFS Server Could Allow Denial of Service (2790978) - Version

    Severity Rating: Important Revision Note: V1.0 (February 12, 2013) Bulletin published. Summary: This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow denial of service if an attacker attempts a file operation on...
  12. News

    The SUA "chgrp" command changes the owner group of an NFS file to "root" unexpectedly in Windows 7 o

    More...
  13. News

    Application may stop responding when it accesses some NFS shares from the Client for NFS component i

    More...
  14. News

    "0x800704C9" error when you copy files to an NFS server from a Windows 7-based or Windows Server 200

    More...
  15. News

    The Mount command accesses an NFS share by using incorrect user credentials in Windows Server 2008 R

    Fixes an issue in which the Mount command does not access an NFS share by using the user credentials that you specified. This issue occurs on a computer that is running Windows Server 2008 R2. More...
  16. News

    "Network error" or "Filename not valid" error message when you access an NFS share from a computer t

    Fixes two issues that occur when you access an NFS share from a computer that is running Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2. More...
  17. News

    Winsock-based operations fail in Windows 7 or in Windows Server 2008 R2 if the executable file is lo

    Fixes an issue in which Winsock-based operations fail if the executable file of a Winsock-based application is located on an NFS share. This issue occurs on a computer that is running Windows 7 or Windows Server 2008 R2. More...
  18. News

    The SUA "chgrp" command changes the owner group of an NFS file to "root" unexpectedly in Windows 7 o

    Fixes an issue in which the owner group of an NFS file is changed to "root" unexpectedly when the SUA "chgrp" command is used. This issue occurs in Windows 7 or in Windows Server 2008 R2. More...
  19. News

    You cannot access content through a symbolic link on an NFS share in Windows 7 or in Windows Server

    Fixes an issue in which you cannot access content through a symbolic link on an NFS share. This issue occurs when the NFS share is accessed by using a DFS path in Windows 7 or in Windows Server 2008 R2. More...
  20. News

    SuSE Linux 10.0 clients cannot mount a Network File System (NFS) share from a server that is running

    Fixes a problem in which SuSE Linux 10.0 clients cannot mount a Network File System (NFS) share from a server that is running Windows 7 Beta. Link Removed
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