CVE-2001-0107
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 · uneditedVeritas Backup agent on Linux allows remote attackers to cause a denial of service by establishing a connection without sending any data, which causes the process to hang.
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 confidenceThe Veritas Backup Agent on Linux contains a denial-of-service vulnerability where establishing a TCP connection without transmitting any data causes the agent process to hang. This indicates the agent lacks proper connection timeout or idle connection handling mechanisms, causing it to block indefinitely on unused connections.
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= 4.5CVSS 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
- Partial
AV:N/AC:L/Au:N/C:N/I:N/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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Identify if Veritas Backup Agent is installedSearch for Veritas Backup Agent processes or binaries on the Linux system using commands such as 'ps aux | grep -i veritas' or 'rpm -qa | grep -i veritas' if using RPM-based distributionsAffected if The presence of any Veritas Backup Agent process or package indicates potential exposure
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Verify the installed version is 4.5Check the installed version of the Veritas Backup Agent using package management tools or by querying the binary version (for example, 'vrtsvxesd -version' or 'vxsf -version' if those commands exist, otherwise consult vendor documentation for version check method)Affected if Version 4.5 exactly matches the affected version for this CVE
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Confirm the backup agent service is running and listening on TCP portsRun 'netstat -tlnp' or 'ss -tlnp' to list listening TCP ports, then identify which port the Veritas Backup Agent is bound toAffected if The backup agent is actively listening on a TCP port and accepting connections
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Test for vulnerable connection handling behaviorEstablish a TCP connection to the backup agent port using a tool such as 'nc' or 'telnet' without transmitting any data, then observe if the connection remains open indefinitely without the agent closing it or timing outAffected if The TCP connection persists without the agent initiating a timeout or disconnect, indicating vulnerable behavior
The system is affected if Veritas Backup Agent version 4.5 is installed, running, and accepting TCP connections that do not trigger proper timeout or idle connection handling.
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 dataApply vendor patches from Veritas for this vulnerability, or implement network-level access controls (firewall rules/ACLs) to restrict which hosts can connect to the backup agent port.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2001-0107 — 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-2001-0107 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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