CVE Vulnerabilities

CVE-2011-4121

Inadequate Encryption Strength

Published: Nov 26, 2019 | Modified: Apr 30, 2020
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
7.5 IMPORTANT
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V3
Ubuntu
HIGH

The OpenSSL extension of Ruby (Git trunk) versions after 2011-09-01 up to 2011-11-03 always generated an exponent value of 1 to be used for private RSA key generation. A remote attacker could use this flaw to bypass or corrupt integrity of services, depending on strong private RSA keys generation mechanism.

Weakness

The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required.

Affected Software

Name Vendor Start Version End Version
Ruby Ruby-lang 1.8.7.334 (including) 1.9.3 (excluding)

Potential Mitigations

References