# CVE-2018-1000873: Moderate severity vulnerability that affects com.fasterxml.jackson.datatype:jackson-datatype-jsr353

> Attackers can cause denial of service by deserializing malicious input with large nanosecond values in Jackson Java8 modules.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 20 Dec 2018
- **Updated:** 5 Aug 2024
- **Also known as:** CLEANSTART-2026-YW54942, GHSA-h4x4-5qp2-wp46, RHLW-2026-7b68982493d0dce4, UBUNTU-CVE-2018-1000873

## What is CVE-2018-1000873?

CVE-2018-1000873 is a medium-severity denial of service vulnerability in Netapp Active Iq Unified Manager, published on 20 Dec 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

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.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2018-1000873?

2 open source packages ship an affected version, including com.fasterxml.jackson.datatype:jackson-datatype-jsr310. It affects 6 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `com.fasterxml.jackson.datatype:jackson-datatype-jsr310` | Maven | All versions | 2.9.8 |
| `com.fasterxml.jackson.datatype:jackson-datatype-jsr310` | Maven | All versions | 2.9.8 |

Products: Fasterxml Jackson-Modules-Java8, Netapp Active Iq Unified Manager, Oracle Clusterware, Oracle Database Server, Oracle Global Lifecycle Management Opatch, Oracle Nosql Database.

## How do I fix CVE-2018-1000873?

Upgrade com.fasterxml.jackson.datatype:jackson-datatype-jsr310 to 2.9.8 or later.

## Is CVE-2018-1000873 being exploited?

There is no known exploitation of CVE-2018-1000873 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-1000873 and fix it if it is affected.

What it is: CVE-2018-1000873 is a medium-severity denial of service vulnerability in Netapp Active Iq Unified Manager, published on 20 Dec 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-1000873 in the wild and no public exploit code.

Affected packages and fixed versions:
- com.fasterxml.jackson.datatype:jackson-datatype-jsr310 (Maven): affected all versions; fixed in 2.9.8
- com.fasterxml.jackson.datatype:jackson-datatype-jsr310 (Maven): affected all versions; fixed in 2.9.8

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2018-1000873/ (Markdown: https://insights.sbomify.com/CVE-2018-1000873/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-1000873
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-1000873
- OSV: https://osv.dev/vulnerability/CVE-2018-1000873

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-1000873/
Summaries are generated and may contain mistakes; the official description above is the record.