CmanApplication · Redhat

CVE-2008-6560

HIGH · 7.8 CVSS v2.0 Published 2009-03-31
Fix available
A fix is available. Upgrade to after 2.03.08-1 or later.
See remediation →
87/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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 · unedited
Buffer overflow in CMAN - The Cluster Manager before 2.03.09-1 on Fedora 9 and Red Hat Enterprise Linux (RHEL) 5 allows attackers to cause a denial of service (CPU consumption and memory corruption) via a cluster.conf file with many lines. NOTE: it is not clear whether this issue crosses privilege boundaries in realistic uses of the product.

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 confidence

Buffer overflow vulnerability in CMAN (Cluster Manager) allows denial of service through specially crafted cluster.conf files containing excessive lines, causing CPU consumption and memory corruption.

MitigationUpgrade CMAN to version 2.03.09-1 or later, or apply vendor patches; validate and limit cluster.conf file size to prevent exploitation.

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
CmanApplication
Affected:<= 2.03.08-1= 2.03.03-1= 2.03.04-1= 2.03.05-1= 2.03.07-1

CVSS 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
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/A:C

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 checks

Work through these to decide whether this CVE applies to you.

  1. Check if CMAN is installed
    Query the package manager for CMAN (Cluster Manager) package, or check running processes for cman daemon
    Affected if CMAN package is present and running on the system
  2. Determine installed CMAN version
    Use package manager query (rpm -q cman, dpkg -l, or similar) to retrieve the exact version number of the CMAN package
    Affected if Version matches <= 2.03.08-1, or equals exactly 2.03.03-1, 2.03.04-1, 2.03.05-1, or 2.03.07-1
  3. Locate cluster.conf file
    Find the cluster.conf file typically located in /etc/cluster/ or /etc/ directory - this is the cluster configuration file parsed by CMAN
    Affected if cluster.conf file exists and is being used by CMAN
  4. Inspect cluster.conf file size and contents
    Check the file size and line count of cluster.conf - look for unusually large files or files with excessive entries that could trigger the buffer overflow
    Affected if cluster.conf contains an abnormally large number of lines or entries relative to expected cluster configuration size

If CMAN is installed with a version matching the affected ranges (2.03.03-1 through 2.03.08-1 inclusive) and is actively parsing a cluster.conf file, the environment is vulnerable to the buffer overflow via specially crafted configuration files.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Upgrade available Upgrade to a release after 2.03.08-1
Interim mitigation

Upgrade CMAN to version 2.03.09-1 or later, or apply vendor patches; validate and limit cluster.conf file size to prevent exploitation.

Fix this in Cman Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,390
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,224.

Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2008-6560 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data