Debian LinuxOperating system · Debian
CVE-2011-3617
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 · uneditedTahoe-LAFS v1.3.0 through v1.8.2 could allow unauthorized users to delete immutable files in some cases.
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 confidenceTahoe-LAFS versions 1.3.0 through 1.8.2 contain an authorization flaw that allows unauthenticated or unauthorized users to delete immutable files. The vulnerability stems from improper validation of delete permissions on immutable files, bypassing the expected access controls that should prevent modification or deletion of immutable data.
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
Debian LinuxOperating system
= 8.0= 9.0= 10.0>= 1.3.0, <= 1.8.2CVSS 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
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
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 Tahoe-LAFS is installedRun 'which tahoe' or check for package with 'dpkg -l | grep tahoe' (Debian) or look for running processes containing 'tahoe'Affected if Tahoe-LAFS is not found on the system, the vulnerability does not apply
-
Determine installed Tahoe-LAFS versionRun 'tahoe --version' or check package version with 'dpkg -l | grep tahoe-lafs'Affected if Version cannot be determined or is not in the Tahoe-LAFS product line
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Compare version against affected rangeVerify the installed version is >= 1.3.0 and <= 1.8.2 using the version output from step 2Affected if Version falls within 1.3.0 through 1.8.2 inclusive - the system may be vulnerable if immutable files are used
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Check for immutable file usageReview Tahoe-LAFS storage nodes and client configurations for any uploaded immutable files or directories configured to use immutable storageAffected if Immutable files are stored or configured - the authorization bypass allows deletion of these files without proper permissions
The system is affected if Tahoe-LAFS version 1.3.0 through 1.8.2 is installed and immutable files are stored, as the authorization flaw permits unauthenticated or unauthorized deletion of immutable files.
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.
From vendor dataUpgrade to Tahoe-LAFS v1.8.3 or later, which contains the fix for the authorization bypass. If immediate upgrade is not possible, restrict network access to the Tahoe-LAFS node and implement additional authentication layers.
Fix this in Debian Linux
Scoped from the published advisory
- Consultation3.0 h
- Implementation6.0 h
- Testing5.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-3617 — 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-2011-3617 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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- Version or environment caveats, and links to real fixes
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