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OpenSSL: CMS and S/MIME Bleichenbacher Attack (20120312) (Windows)
Information
Severity
Severity
Medium
Family
Family
General
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Solution Type
Solution Type
Vendor Patch
Created
Created
2 years ago
Modified
Modified
2 years ago
Summary
OpenSSL is prone to a Bleichenbacher attack.
Insight
Insight
A weakness in the OpenSSL CMS and PKCS #7 code can be exploited using Bleichenbacher's attack on PKCS #1 v1.5 RSA padding also known as the million message attack (MMA).
Affected Software
Affected Software
OpenSSL 0.9.8 through 0.9.8t and 1.0.0 through 1.0.0g.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 0.9.8u, 1.0.0h or later.