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Last updated: 2/9/2016 6:48:23 AM

CVE Publication rate: 11.37

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Vulnerability Workload Index: 4.43
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National Cyber Awareness System

Vulnerability Summary for CVE-2011-0766

Original release date: 05/31/2011
Last revised: 07/13/2011


The random number generator in the Crypto application before, 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.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.8 (HIGH) (AV:N/AC:L/Au:N/C:C/I:N/A:N) (legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information

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External Source: CONFIRM
Name: https://github.com/erlang/otp/commit/f228601de45c5b53241b103af6616453c50885a5
Type: Patch Information
External Source: BID
Name: 47980
US-CERT Vulnerability Note: CERT-VN
Name: VU#178990
Type: Patch Information

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:ssh:ssh:2.0.4 and previous versions
* cpe:/a:ssh:ssh:1.2.1
* cpe:/a:ssh:ssh:1.2.0
* cpe:/a:ssh:ssh:1.2.11
* cpe:/a:ssh:ssh:1.2.10
* cpe:/a:ssh:ssh:1.2.29
* cpe:/a:ssh:ssh:1.2.3
* cpe:/a:ssh:ssh:1.2.27
* cpe:/a:ssh:ssh:1.2.28
* cpe:/a:ssh:ssh:1.2.4
* cpe:/a:ssh:ssh:1.2.5
* cpe:/a:ssh:ssh:1.2.30
* cpe:/a:ssh:ssh:1.2.31
* cpe:/a:ssh:ssh:1.2.8
* cpe:/a:ssh:ssh:1.2.9
* cpe:/a:ssh:ssh:1.2.6
* cpe:/a:ssh:ssh:1.2.7
* cpe:/a:ssh:ssh:1.2.15
* cpe:/a:ssh:ssh:1.2.14
* cpe:/a:ssh:ssh:1.2.13
* cpe:/a:ssh:ssh:1.2.12
* cpe:/a:ssh:ssh:1.2.19
* cpe:/a:ssh:ssh:1.2.18
* cpe:/a:ssh:ssh:1.2.17
* cpe:/a:ssh:ssh:1.2.16
* cpe:/a:ssh:ssh:1.2.22
* cpe:/a:ssh:ssh:1.2.21
* cpe:/a:ssh:ssh:1.2.20
* cpe:/a:ssh:ssh:1.2.2
* cpe:/a:ssh:ssh:1.2.26
* cpe:/a:ssh:ssh:1.2.25
* cpe:/a:ssh:ssh:1.2.24
* cpe:/a:ssh:ssh:1.2.23
* cpe:/a:erlang:erlang%2fotp:r14b02 and previous versions
* cpe:/a:erlang:erlang%2fotp:r14b01
* cpe:/a:erlang:erlang%2fotp:r14b
* cpe:/a:erlang:erlang%2fotp:r14a
* cpe:/a:erlang:erlang%2fotp:r13b04
* cpe:/a:erlang:erlang%2fotp:r13b03
* cpe:/a:erlang:erlang%2fotp:r13b02-1
* cpe:/a:erlang:erlang%2fotp:r13b
* cpe:/a:erlang:erlang%2fotp:r12b-5
* cpe:/a:erlang:erlang%2fotp:r11b-5
* cpe:/a:erlang:crypto: and previous versions
* cpe:/a:erlang:crypto:2.0.2
* cpe:/a:erlang:crypto:2.0.1
* cpe:/a:erlang:crypto:2.0
* cpe:/a:erlang:crypto:1.6.4
* cpe:/a:erlang:crypto:1.6.3
* cpe:/a:erlang:crypto:1.6.2
* cpe:/a:erlang:crypto:1.6.1
* cpe:/a:erlang:crypto:1.6
* cpe:/a:erlang:crypto:1.5.3
* cpe:/a:erlang:crypto:
* cpe:/a:erlang:crypto:1.5.2
* cpe:/a:erlang:crypto:
* cpe:/a:erlang:crypto:1.5
* cpe:/a:erlang:crypto:1.4
* cpe:/a:erlang:crypto:1.3
* cpe:/a:erlang:crypto:1.2.3
* cpe:/a:erlang:crypto:1.2.2
* cpe:/a:erlang:crypto:1.2.1
* cpe:/a:erlang:crypto:1.2
* cpe:/a:erlang:crypto:1.1.3
* cpe:/a:erlang:crypto:1.1.2
* cpe:/a:erlang:crypto:1.1.1
* cpe:/a:erlang:crypto:1.1
* cpe:/a:erlang:crypto:1.0

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)