# CVE-2018-11778: UnixAuthenticationService in Apache Ranger was updated to correctly handle user input to avoid Stack-based buffer overflow

Source: https://junglewise.ai/threats/cve-2018-11778-unixauthenticationservice-in-apache-ranger-was-updated-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2018-10-17  
License: CC BY 4.0 with a link back

CVE-2018-11778 · Severity: low · CVSS 3 · Published 2018-10-17

UnixAuthenticationService in Apache Ranger was updated to correctly handle user input to avoid Stack-based buffer overflow

Technologies: [org.apache.ranger:ranger (Maven)](https://junglewise.ai/threats/technologies/org-apache-ranger-ranger). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2018-11778 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2018-11778 being exploited in the wild.

**How severe is CVE-2018-11778?** Low severity, with a CVSS score of 3, published 17 October 2018.

**Which products and versions are affected?** org.apache.ranger:ranger (Maven) ECOSYSTEM:introduced=0,fixed=1.2.0.

**Is there a fix for CVE-2018-11778?** Yes. org.apache.ranger:ranger (Maven): upgrade to 1.2.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2018-11778?** Check whether you run org.apache.ranger:ranger (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- org.apache.ranger:ranger (Maven): upgrade to 1.2.0 or later

  ```sh
  # set org.apache.ranger:ranger to 1.2.0 in your pom.xml or build.gradle
  ```


## Affected products

- org.apache.ranger:ranger (Maven) ECOSYSTEM:introduced=0,fixed=1.2.0

## Identifiers

- CVE-2018-11778
- GHSA-c99h-fgqm-6679

## Related threats

- [Apache Ranger command injection vulnerability](https://junglewise.ai/threats/cve-2026-28672-apache-ranger-command-injection-vulnerability)
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- [Apache Ranger has Stored Cross-site Scripting vulnerability in Edit Service Page](https://junglewise.ai/threats/cve-2024-45478-apache-ranger-has-stored-cross-site-scripting-vulnerability-in)
- [Apache Ranger code execution vulnerability in policy expressions](https://junglewise.ai/threats/cve-2022-45048-apache-ranger-code-execution-vulnerability-in-policy-expressions)
- [Apache Ranger Cross-site Scripting vulnerability](https://junglewise.ai/threats/cve-2015-0265-apache-ranger-cross-site-scripting-vulnerability)