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Age in Days
CVSS Score
Patch within next
Risk Level



180 Days



This vulnerability is 7 years 8 months and 7 days old and there are presently no exploits available for the it. The vulnerability itself is over a year old, and while there are presently no publicly known exploits available for it, the vulnerability should be patched within the next three months.



Local attackers may be able to access sensitive information.


Vulnerability Description

According to its banner, the version of OpenSSH running on the remote host is earlier than 5.8p2. Such versions may be affected by a local information disclosure vulnerability that could allow the contents of the host's private key to be accessible by locally tracing the execution of the ssh-keysign utility. Having the host's private key may allow the impersonation of the host.

Note that installations are only vulnerable if ssh-rand-helper was enabled during the build process, which is not the case for *BSD, OS X, Cygwin and Linux.



Upgrade to Portable OpenSSH 5.8p2 or later.


Further Information


CVE References

CVE-2011-4327 NIST | MITRE | CVEDetails


Get in touch

Should you have any questions regarding this or any security matter, please do not hesitate to get in touch by emailing the Hedgehog Cyber Operations Team.

Whilst every effort is made to ensure the accuracy and robustness of any information presented, it is not possible for Hedgehog Cyber to test every possible scenario an organisation may face, and Hedgehog Cyber cannot be held liable for any loss or damage which may arise from taking action on any of the contents provided. Hedgehog Cyber strongly advises that all recommendations, solutions and detection methods detailed, are thoroughly reviewed and tested in non-production environments before being considered suitable for production release, in-line with any existing internal change control procedures.