Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-0766

Severity CVSS v4.0:
Pending analysis
Type:
CWE-310 Cryptographic Issues
Publication date:
31/05/2011
Last modified:
11/04/2025

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.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:C/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): None
Availability (A): None

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:erlang:crypto:*:*:*:*:*:*:*:* 2.0.2.1 (including)
cpe:2.3:a:erlang:erlang\/otp:r11b-5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:r12b-5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:r13b:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:r13b02-1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:r13b03:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:r13b04:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:r14a:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:r14b:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:r14b01:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:r14b02:*:*:*:*:*:*:*
cpe:2.3:a:ssh:ssh:*:*:*:*:*:*:*:* 2.0.4 (including)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools