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OpenSSL Montgomery Multiplication Denial of Service Vulnerability (Linux)
Information
Severity
Severity
Low
Family
Family
Denial of Service
CVSSv2 Base
CVSSv2 Base
2.6
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:H/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
7 years ago
Modified
Modified
5 years ago
Summary
This host is running OpenSSL and is prone to denial of service vulnerability.
Insight
Insight
The flaw is due to a carry propagating bug in the Broadwell-specific Montgomery multiplication procedure that handles input lengths divisible by, but longer than 256 bits.
Affected Software
Affected Software
OpenSSL 1.1.0 before 1.1.0c and 1.0.2 before 1.0.2k on Linux
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Upgrade to OpenSSL version 1.1.0c or 1.0.2k or later.