Filebeat Beats has Buffer Overflow via Malformed Syslog Message or Malicious Tokenizer Pattern in Dissect Configuration
Improper Validation of Specified Index, Position, or Offset in Input (CWE-1285) in Filebeat Syslog parser and the Libbeat Dissect processor can allow a user to trigger a Buffer Overflow (CAPEC-100) and cause a denial of service (panic/crash) of the Filebeat process via either a malformed Syslog message or a malicious tokenizer pattern in the Dissect configuration.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-68383US | — | — | ||
Improper Validation of Specified Index, Position, or Offset in Input (CWE-1285) in Filebeat Syslog parser and the Libbeat Dissect processor can allow a user to trigger a Buffer Ove… | ||||
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references
External citations — patches, advisories, analysis.
- https://discuss.elastic.co/t/filebeat-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-32/384180WEB
- https://github.com/elastic/beats/commit/27a168fb1c598d4a16748e9a7382bc0d197335a5WEB
- https://github.com/elastic/beats/commit/2f971a057eea68e057b47829950cd8c26805df30WEB
- https://github.com/elastic/beats/commit/339fa3f887a14c91e0c955b50a3b8819393bd632WEB
- https://github.com/elastic/elasticsearchPACKAGE
- https://nvd.nist.gov/vuln/detail/CVE-2025-68383ADVISORY
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