---
title: "CVE-2011-3599\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2011-3599?format=md
keywords: index, follow
---

# CVE-2011-3599

Publication date 10 October 2011

Last updated 24 July 2024

---

Ubuntu priority

**Negligible**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

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## 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.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2011-3599?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libcrypt-dsa-perl | 11.04 natty | Not in release |
| 10.10 maverick | Not in release |
| 10.04 LTS lucid | Not in release |
| 8.04 LTS hardy | Not in release |

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* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Notes

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### [sbeattie](https://launchpad.net/~sbeattie)

all our kernels have /dev/random on them, thus not affected
by fallback code

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3599)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-3599)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-3599)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-3599)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2011-3599>