Zeek before 8.0.9 contains an uncontrolled memory consumption vulnerability in the FTP analyzer that allows unauthenticated remote attackers to cause process termination by sending a crafted FTP control session negotiating AUTH GSSAPI followed by a large ADAT control line. Attackers can exploit the NVT_Analyzer component's lack of a maximum line length check, causing it to continuously double its internal buffer without bounds during base64 decoding of an attacker-controlled ADAT token, resulting in denial of service of the Zeek sensor.
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History
Thu, 09 Jul 2026 15:30:00 +0000
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Thu, 09 Jul 2026 14:30:00 +0000
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| Description | Zeek before 8.0.9 contains an uncontrolled memory consumption vulnerability in the FTP analyzer that allows unauthenticated remote attackers to cause process termination by sending a crafted FTP control session negotiating AUTH GSSAPI followed by a large ADAT control line. Attackers can exploit the NVT_Analyzer component's lack of a maximum line length check, causing it to continuously double its internal buffer without bounds during base64 decoding of an attacker-controlled ADAT token, resulting in denial of service of the Zeek sensor. | |
| Title | Zeek < 8.0.9 Uncontrolled Memory Consumption DoS via FTP Analyzer | |
| Weaknesses | CWE-770 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-07-09T14:53:07.211Z
Reserved: 2026-07-08T13:27:53.030Z
Link: CVE-2026-60108
Updated: 2026-07-09T14:51:19.984Z
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OpenCVE Enrichment
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