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CVE-2011-0766

7.8 · HIGH

The random number generator in the Crypto application before 2.0.2.2, and SSH before 2.0.5, as used in the Erlang/OTP ssh library before R14B03, uses predictable seeds based on the current time, wh…

Published May 31, 2011erlangCWE-310EPSS 3.07%

Overview

CVE-2011-0766 is a high-severity vulnerability affecting erlang crypto. It was published on May 31, 2011 and has a CVSS 2.0 base score of 7.8 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The random number generator in the Crypto application before 2.0.2.2, and SSH before 2.0.5, as used in the Erlang/OTP ssh library before R14B03, uses predictable seeds based on the current time, which makes it easier for remote attackers to guess DSA host and SSH session keys.

Remediation

Check the references section for vendor advisories and patches from erlang. Update crypto to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
erlangcrypto0Affected
sshssh0Affected

References

Refsecunia.com/advisories/44709Refwww.kb.cert.org/vuls/id/178990Refwww.securityfocus.com/bid/47980GitHubgithub.com/erlang/otp/commit/f228601de45c5b53241b103af6616453c50885a5Refsecunia.com/advisories/44709Refwww.kb.cert.org/vuls/id/178990Refwww.securityfocus.com/bid/47980GitHubgithub.com/erlang/otp/commit/f228601de45c5b53241b103af6616453c50885a5

How CyberStrike helps

Frequently asked questions

What is CVE-2011-0766?

CVE-2011-0766 is a high-severity vulnerability affecting erlang crypto. It was published on May 31, 2011 and has a CVSS 2.0 base score of 7.8 (HIGH).

How severe is CVE-2011-0766?

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-0766?

Check the references section for vendor advisories and patches from erlang. Update crypto to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-0766?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-0766 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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