GHSA-r3q8-ccf6-4xhj
Zeek versions prior to 8.0.9 contain a vulnerability in the FTP analyzer where an unauthenticated remote attacker can cause a denial of service. This occurs when the attacker sends a crafted FTP control session negotiating AUTH GSSAPI followed by a large ADAT control line, triggering uncontrolled memory consumption and process termination.
AI Analysis
Technical Summary
The vulnerability in Zeek before version 8.0.9 involves the FTP analyzer's NVT_Analyzer component, which lacks a maximum line length check during base64 decoding of the ADAT token. An attacker can exploit this by sending a crafted FTP control session with AUTH GSSAPI negotiation followed by a large ADAT control line. This causes the internal buffer to double repeatedly without bounds, leading to uncontrolled memory consumption and ultimately denial of service by terminating the Zeek process.
Potential Impact
Successful exploitation results in denial of service of the Zeek sensor due to process termination caused by uncontrolled memory consumption. The attack requires no authentication and can be triggered remotely by sending specially crafted FTP control messages.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided at this time. Users should monitor vendor communications for updates and consider mitigating exposure to untrusted FTP traffic until a fix is available.
GHSA-r3q8-ccf6-4xhj
Description
Zeek versions prior to 8.0.9 contain a vulnerability in the FTP analyzer where an unauthenticated remote attacker can cause a denial of service. This occurs when the attacker sends a crafted FTP control session negotiating AUTH GSSAPI followed by a large ADAT control line, triggering uncontrolled memory consumption and process termination.
CVSS v4.0
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Zeek before version 8.0.9 involves the FTP analyzer's NVT_Analyzer component, which lacks a maximum line length check during base64 decoding of the ADAT token. An attacker can exploit this by sending a crafted FTP control session with AUTH GSSAPI negotiation followed by a large ADAT control line. This causes the internal buffer to double repeatedly without bounds, leading to uncontrolled memory consumption and ultimately denial of service by terminating the Zeek process.
Potential Impact
Successful exploitation results in denial of service of the Zeek sensor due to process termination caused by uncontrolled memory consumption. The attack requires no authentication and can be triggered remotely by sending specially crafted FTP control messages.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided at this time. Users should monitor vendor communications for updates and consider mitigating exposure to untrusted FTP traffic until a fix is available.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-r3q8-ccf6-4xhj
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-60108"]
- Ecosystems
- []
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
Threat ID: 6a50bab068715ace4358592f
Added to database: 07/10/2026, 09:26:08 UTC
Last enriched: 07/10/2026, 10:19:03 UTC
Last updated: 07/10/2026, 10:19:03 UTC
Views: 3
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