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Tivoli Storage Manager FastbackApplication · Ibm

CVE-2015-4935

HIGH · 10.0 CVSS v2.0 Published 2015-08-03
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click Patch available

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
Stack-based buffer overflow in the server in IBM Tivoli Storage Manager FastBack 6.1 before 6.1.12.1 allows remote attackers to execute arbitrary code via a crafted packet, a different vulnerability than CVE-2015-4931, CVE-2015-4932, CVE-2015-4933, and CVE-2015-4934.

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

Stack-based buffer overflow in the server component of IBM Tivoli Storage Manager FastBack 6.1 (versions before 6.1.12.1) allows remote attackers to execute arbitrary code via a crafted packet. The vulnerability has a CVSS score of 10 indicating critical severity with low attack complexity and no authentication required.

MitigationUpgrade IBM Tivoli Storage Manager FastBack to version 6.1.12.1 or later to patch the stack-based buffer overflow vulnerability. If immediate patching is not possible, consider network segmentation to restrict access to the FastBack server.

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
Tivoli Storage Manager FastbackApplication
Affected:= 6.1.0.0= 6.1.1.0= 6.1.7.2= 6.1.8.0= 6.1.8.1= 6.1.9.0= 6.1.9.1= 6.1.10.0= 6.1.10.1= 6.1.11.0= 6.1.11.1

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
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:N/C:C/I:C/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. Identify if IBM Tivoli Storage Manager FastBack is installed
    Check for FastBack installation directories or list installed software on the system. Look for processes named fbserver, fastback, or TSMFastBack.
    Affected if IBM Tivoli Storage Manager FastBack is present on the system
  2. Determine the installed FastBack version
    Use the FastBack version command or check the program files directory for version information. Common locations include the FastBack installation path or check Windows registry under the FastBack product key.
    Affected if The installed version matches any of these: 6.1.0.0, 6.1.1.0, 6.1.7.2, 6.1.8.0, 6.1.8.1, 6.1.9.0, 6.1.9.1, 6.1.10.0, 6.1.10.1, 6.1.11.0, or 6.1.11.1
  3. Verify the FastBack server component is running
    Check for active processes related to FastBack server. On Windows, use Task Manager or sc query. On Unix/Linux, use ps aux | grep -i fastback.
    Affected if The FastBack server process is running and listening on network ports
  4. Check network exposure of the FastBack server
    Identify which network interfaces and ports the FastBack server is bound to. Use netstat or similar tools to determine if the server is listening on accessible network interfaces.
    Affected if The FastBack server is accessible from network segments beyond the local host

You are affected if IBM Tivoli Storage Manager FastBack version 6.1.0.0 through 6.1.11.1 is installed and the server component is running and reachable on the network.

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.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch www-01.ibm.com →
Interim mitigation

Upgrade IBM Tivoli Storage Manager FastBack to version 6.1.12.1 or later to patch the stack-based buffer overflow vulnerability. If immediate patching is not possible, consider network segmentation to restrict access to the FastBack server.

Recommended fix High confidence

IBM Tivoli Storage Manager FastBack 6.1.12.1 or later

  1. 1. Identify the current installed version of IBM Tivoli Storage Manager FastBack by checking the program version in the server console or running 'dsmiver' or 'fbmgr -version' command
  2. 2. Download IBM Tivoli Storage Manager FastBack version 6.1.12.1 or later from the IBM Support Portal using the patch URL provided: http://www-01.ibm.com/support/docview.wss?uid=swg21961928
  3. 3. Review the IBM installation and upgrade guide for version 6.1.12.1 before proceeding
  4. 4. Stop the FastBack server service to ensure a clean upgrade environment
  5. 5. Install the version 6.1.12.1 or later upgrade package following IBM's documented upgrade procedure
  6. 6. Verify the upgrade was successful by checking the server version after restart
  7. 7. Confirm the FastBack server services are running properly after the upgrade

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Tivoli Storage Manager Fastback Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing12.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,760
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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-2015-4935 in production — separate from our analysis above.

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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