CVE-2025-68383
Medium · 6.5Filebeat Beats has Buffer Overflow via Malformed Syslog Message or Malicious Tokenizer Pattern in Dissect Configuration
CVSS
6.5
EPSS
0.2%
Published
Dec 19, 2025
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/elastic/beats | 0 | No fix |
| Go | github.com/elastic/beats/v7 | 0 | 7.0.0-alpha2.0.20251204214633-dd3af18220bf |
| Go | github.com/elastic/beats/v7 | 7.7.0 | 8.19.9 |
| Go | github.com/elastic/beats/v7 | 9.0.0 | 9.1.9 |
| Go | github.com/elastic/beats/v7 | 9.2.0 | 9.2.3 |
| Chainguard | agentbeat-fips | 0 | 0 |
| Chainguard | apm-server-7.17-compat | 0 | 7.17.29-r7 |
| Chainguard | apm-server-8.17-compat | 0 | 8.17.10-r4 |
| Chainguard | apm-server-8.18-compat | 0 | 8.18.8-r3 |
| Chainguard | apm-server-8.19 | 0 | 8.19.11-r0 |
| Chainguard | apm-server-8.19-compat | 0 | 8.19.9-r0 |
| Chainguard | apm-server-9.0-compat | 0 | 9.0.8-r2 |
| Chainguard | apm-server-9.1-compat | 0 | 9.1.9-r0 |
| Chainguard | apm-server-9.2 | 0 | 9.2.3-r1 |
| Chainguard | apm-server-9.2-compat | 0 | 9.2.3-r1 |
| Chainguard | apm-server-fips-7.17-compat | 0 | 7.17.29-r7 |
| Chainguard | apm-server-fips-8.17-compat | 0 | 8.17.10-r3 |
| Chainguard | apm-server-fips-8.18-compat | 0 | 8.18.8-r2 |
| Chainguard | apm-server-fips-8.19 | 0 | 8.19.11-r0 |
| Chainguard | apm-server-fips-8.19-compat | 0 | 8.19.9-r0 |
| Chainguard | apm-server-fips-9.0-compat | 0 | 9.0.8-r2 |
| Chainguard | apm-server-fips-9.1-compat | 0 | 9.1.9-r0 |
| Chainguard | apm-server-fips-9.2 | 0 | 9.2.3-r1 |
| Chainguard | apm-server-fips-9.2-compat | 0 | 9.2.3-r1 |
| Chainguard | auditbeat-7-oci-entrypoint | 0 | 7.17.29-r7 |
| Chainguard | auditbeat-8.17-oci-entrypoint | 0 | 8.17.10-r5 |
| Chainguard | auditbeat-8.18-oci-entrypoint | 0 | 8.18.8-r5 |
| Chainguard | auditbeat-8.19 | 0 | 0 |
| Chainguard | auditbeat-8.19-oci-entrypoint | 0 | 0 |
| Chainguard | auditbeat-9.0-oci-entrypoint | 0 | 9.0.8-r4 |
| Chainguard | auditbeat-9.1 | 0 | 0 |
| Chainguard | auditbeat-9.1-oci-entrypoint | 0 | 0 |
| Chainguard | auditbeat-9.2 | 0 | 0 |
| Chainguard | auditbeat-9.2-oci-entrypoint | 0 | 0 |
| Chainguard | auditbeat-fips-8.19 | 0 | 0 |
| Chainguard | auditbeat-fips-9.1 | 0 | 0 |
| Chainguard | auditbeat-fips-9.2 | 0 | 0 |
| Chainguard | beats-7 | 0 | 7.17.29-r7 |
| Chainguard | beats-8.17 | 0 | 8.17.10-r5 |
| Chainguard | beats-8.18 | 0 | 8.18.8-r5 |
| Chainguard | beats-8.19 | 0 | 0 |
| Chainguard | beats-9.0 | 0 | 9.0.8-r4 |
| Chainguard | beats-9.1 | 0 | 0 |
| Chainguard | beats-9.2 | 0 | 0 |
| Chainguard | beats-fips-7 | 0 | 7.17.29-r8 |
| Chainguard | beats-fips-8.17 | 0 | 8.17.10-r3 |
| Chainguard | beats-fips-8.18 | 0 | 8.18.8-r3 |
| Chainguard | beats-fips-8.19 | 0 | 0 |
| Chainguard | beats-fips-9.0 | 0 | 9.0.8-r3 |
| Chainguard | beats-fips-9.1 | 0 | 0 |
| Chainguard | beats-fips-9.2 | 0 | 0 |
| Chainguard | elastic-agent | 0 | 9.2.3-r0 |
| Chainguard | filebeat-7-oci-entrypoint | 0 | 7.17.29-r7 |
| Chainguard | filebeat-8.17-oci-entrypoint | 0 | 8.17.10-r5 |
| Chainguard | filebeat-8.18-oci-entrypoint | 0 | 8.18.8-r5 |
| Chainguard | filebeat-8.19 | 0 | 0 |
| Chainguard | filebeat-8.19-oci-entrypoint | 0 | 0 |
| Chainguard | filebeat-9.0-oci-entrypoint | 0 | 9.0.8-r4 |
| Chainguard | filebeat-9.1 | 0 | 0 |
| Chainguard | filebeat-9.1-oci-entrypoint | 0 | 0 |
| Chainguard | filebeat-9.2 | 0 | 0 |
| Chainguard | filebeat-9.2-oci-entrypoint | 0 | 0 |
| Chainguard | filebeat-fips-8.19 | 0 | 0 |
| Chainguard | filebeat-fips-9.1 | 0 | 0 |
| Chainguard | filebeat-fips-9.2 | 0 | 0 |
| Chainguard | heartbeat-7-oci-entrypoint | 0 | 7.17.29-r7 |
| Chainguard | heartbeat-8.17-oci-entrypoint | 0 | 8.17.10-r5 |
| Chainguard | heartbeat-8.18-oci-entrypoint | 0 | 8.18.8-r5 |
| Chainguard | heartbeat-8.19 | 0 | 0 |
| Chainguard | heartbeat-8.19-oci-entrypoint | 0 | 0 |
| Chainguard | heartbeat-9.0-oci-entrypoint | 0 | 9.0.8-r4 |
| Chainguard | heartbeat-9.1 | 0 | 0 |
| Chainguard | heartbeat-9.1-oci-entrypoint | 0 | 0 |
| Chainguard | heartbeat-9.2 | 0 | 0 |
| Chainguard | heartbeat-9.2-oci-entrypoint | 0 | 0 |
| Chainguard | heartbeat-fips-7-oci-entrypoint | 0 | 7.17.29-r8 |
| Chainguard | heartbeat-fips-8.17-oci-entrypoint | 0 | 8.17.10-r3 |
| Chainguard | heartbeat-fips-8.18-oci-entrypoint | 0 | 8.18.8-r3 |
| Chainguard | heartbeat-fips-8.19 | 0 | 0 |
| Chainguard | heartbeat-fips-8.19-oci-entrypoint | 0 | 0 |
| Chainguard | heartbeat-fips-9.0-oci-entrypoint | 0 | 9.0.8-r3 |
| Chainguard | heartbeat-fips-9.1 | 0 | 0 |
| Chainguard | heartbeat-fips-9.1-oci-entrypoint | 0 | 0 |
| Chainguard | heartbeat-fips-9.2 | 0 | 0 |
| Chainguard | heartbeat-fips-9.2-oci-entrypoint | 0 | 0 |
| Chainguard | metricbeat-7-oci-entrypoint | 0 | 7.17.29-r7 |
| Chainguard | metricbeat-8.17-oci-entrypoint | 0 | 8.17.10-r5 |
| Chainguard | metricbeat-8.18-oci-entrypoint | 0 | 8.18.8-r5 |
| Chainguard | metricbeat-8.19 | 0 | 0 |
| Chainguard | metricbeat-8.19-oci-entrypoint | 0 | 0 |
| Chainguard | metricbeat-9.0-oci-entrypoint | 0 | 9.0.8-r4 |
| Chainguard | metricbeat-9.1 | 0 | 0 |
| Chainguard | metricbeat-9.1-oci-entrypoint | 0 | 0 |
| Chainguard | metricbeat-9.2 | 0 | 0 |
| Chainguard | metricbeat-9.2-oci-entrypoint | 0 | 0 |
| Chainguard | metricbeat-fips-8.19 | 0 | 0 |
| Chainguard | metricbeat-fips-9.1 | 0 | 0 |
| Chainguard | metricbeat-fips-9.2 | 0 | 0 |
| go | github.com/elastic/beats/v7 | 7.7.0 | 8.19.9 |
| go | github.com/elastic/beats/v7 | 9.0.0 | 9.1.9 |
| go | github.com/elastic/beats/v7 | 9.2.0 | 9.2.3 |
| openSUSE:Leap 15.6 | govulncheck-vulndb | 0 | 0.0.20260123T022811-150000.1.140.1 |
Related vulnerabilities
- GO-2025-4253 Elasticsearch Packetbeat has Excessive Allocation of Memory and CPU via Malicious IPv4… Also affects github.com/elastic/beats
- CVE-2025-68388 Elasticsearch Packetbeat has Excessive Allocation of Memory and CPU via Malicious IPv4… Also affects github.com/elastic/beats
- GHSA-w2gr-585j-r428 Metricbeat affected by multiple denial of service vulnerabilities Also affects github.com/elastic/beats/v7
- CVE-2026-0528 Metricbeat affected by multiple denial of service vulnerabilities Also affects github.com/elastic/beats/v7
- CVE-2026-34986 Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of… Also affects agentbeat-fips
- CVE-2026-33186 gRPC-Go is the Go language implementation of gRPC. Also affects agentbeat-fips
- CVE-2026-27142 Actions which insert URLs into the content attribute of HTML meta tags are not escaped. Also affects agentbeat-fips
- CVE-2026-27139 On Unix platforms, when listing the contents of a directory using File.ReadDir or… Also affects agentbeat-fips