CVE-2001-1309
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 · uneditedBuffer overflows in IBM SecureWay 3.2.1 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code, as demonstrated by the PROTOS LDAPv3 test suite.
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 · high confidenceBuffer overflow vulnerabilities in IBM SecureWay 3.2.1's LDAP service allow remote attackers to send specially crafted LDAP requests that can crash the service (DoS) or potentially execute arbitrary code with elevated privileges.
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= 3.2.1CVSS 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
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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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Verify IBM SecureWay Directory is installedCheck the system for IBM SecureWay Directory installation. On Windows, examine Add/Remove Programs or check common installation paths such as C:\Program Files\IBM\SecureWay. On Unix/Linux, check for the product in /opt/ibm/secureway or via package management tools.Affected if IBM SecureWay Directory is present on the system
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Confirm the installed version is 3.2.1Locate version information for the installed IBM SecureWay Directory. Check the product itself (typically via its admin console, about dialog, or version file), or examine registry keys on Windows (HKLM\SOFTWARE\IBM\SecureWay\Directory\Version) or version files on Unix systems.Affected if The installed version is exactly 3.2.1
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Determine if LDAP service is runningVerify the LDAP service component of IBM SecureWay Directory is currently running. On Windows, check Services control panel or use 'net start' command. On Unix, check process list with 'ps' command for LDAP-related processes.Affected if The LDAP service is actively running
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Check if LDAP service is network-accessibleDetermine if the LDAP port (default 389) is listening on network interfaces and accessible from external sources. Use 'netstat -an' or 'nmap -p 389' to identify listening ports and their binding addresses. Verify firewall rules permit or block external access.Affected if The LDAP service is bound to a network-accessible interface and reachable from untrusted networks
The environment is affected if IBM SecureWay Directory version 3.2.1 is installed with its LDAP service running and accessible over the network.
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 from IBM SecureWay to a current IBM security product (Tivoli Directory Server) or replace with a modern LDAP server; if immediate upgrade is not feasible, restrict network access to the LDAP service to trusted sources only.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2001-1309 — 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-2001-1309 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
- No weaponised exploit code, or anything meant to cause harm
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