FedoraOperating system · Fedoraproject
CVE-2022-30783
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn invalid return code in fuse_kern_mount enables intercepting of libfuse-lite protocol traffic between NTFS-3G and the kernel in NTFS-3G through 2021.8.22 when using libfuse-lite.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceIn NTFS-3G versions through 2021.8.22 when using libfuse-lite, the fuse_kern_mount function returns an invalid error code that fails to properly establish the mount context. This allows an attacker to intercept the libfuse-lite protocol traffic between NTFS-3G and the kernel, potentially enabling man-in-the-middle attacks on filesystem operations.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
FedoraOperating system
= 35= 36
Debian LinuxOperating system
= 9.0= 10.0= 11.0<= 2021.8.22CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check if NTFS-3G is installedRun 'which ntfs-3g' or 'ntfs-3g --version' on the command lineAffected if NTFS-3G is not installed or the command fails
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Determine the installed NTFS-3G versionRun 'ntfs-3g --version' and compare the version number to 2021.8.22Affected if The version is 2021.8.22 or earlier
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Identify if libfuse-lite is in useCheck for the presence of libfuse-lite library files (such as libfuse-lite.so) in the system, or check which fuse library the ntfs-3g binary links to using 'ldd $(which ntfs-3g)'Affected if libfuse-lite is present and being used by NTFS-3G rather than standard libfuse
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Check for NTFS mounts using the NTFS-3G driverRun 'mount | grep ntfs' or check /proc/mounts for active NTFS mounts to see if NTFS-3G is handling themAffected if NTFS partitions are currently mounted via NTFS-3G with libfuse-lite in use
You are affected if NTFS-3G version 2021.8.22 or earlier is installed AND the system is configured to use libfuse-lite (as opposed to standard libfuse) for mounting NTFS filesystems.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpgrade NTFS-3G to a version after 2021.8.22 which contains the fix for the invalid return code in fuse_kern_mount, or avoid using libfuse-lite and use the standard libfuse instead.
Any version of NTFS-3G newer than 2021.8.22 (e.g., latest stable release from https://github.com/tuxera/ntfs-3g)
- Update your system's package repository metadata
- Install the updated ntfs-3g package using your distribution's package manager (e.g., dnf upgrade ntfs-3g for Fedora, apt-get update && apt-get install ntfs-3g for Debian)
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Fedora
Scoped from the published advisory
- Consultation2.0 h
- Implementation1.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,936.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-30783 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-30783 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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