Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| zeek / zeek | affected 0 before 8.0.9 |
CWE
CWE-770
References
- https://github.com/zeek/zeek/releases/tag/v8.0.9
- https://github.com/zeek/zeek/commit/93ff6950a90cfa9d00c1062cde429313a0402a01
- https://www.vulncheck.com/advisories/zeek-uncontrolled-memory-consumption-dos-via-ftp-analyzer
ADP enrichment
No English description supplied.
No references supplied.