# CVE-2018-1000873: CVE-2018-1000873

- Exploited (CISA KEV): no
- Published: 2018-12-20
- CVSS: not scored
- EPSS: 4.8% (92th percentile)

Fasterxml Jackson version Before 2.9.8 contains a CWE-20: Improper Input Validation vulnerability in Jackson-Modules-Java8 that can result in Causes a denial-of-service (DoS). This attack appear to be exploitable via The victim deserializes malicious input, specifically very large values in the nanoseconds field of a time value. This vulnerability appears to have been fixed in 2.9.8.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | Before feed history | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2024-09-17 | — |
| Akamai | No public source | — | — |
| OWASP CRS | Before feed history | — | — |

### F5

- 2024-09-17 · updated · rule 200012049
  > Updated: signature 200012049 "Jackson data-bind BigDecimal DoS (Parameter)" (Denial of Service, risk Medium), systems: Java Servlets/JSP, Apache Tomcat, BEA Systems WebLogic Server, Apache Struts, JBoss, JavaServer Faces (JSF). References: CVE-2018-1000873.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2024-09-17 · updated · rule 200012050
  > Updated: signature 200012050 "Jackson data-bind BigDecimal DoS (Header)" (Denial of Service, risk Medium), systems: Java Servlets/JSP, Apache Tomcat, BEA Systems WebLogic Server, Apache Struts, JBoss, JavaServer Faces (JSF). References: CVE-2018-1000873.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2018-1000873 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2018-1000873