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OpenSSL OCSP Status Request extension unbounded memory growth Vulnerability (Windows)
Information
Severity
Severity
High
Family
Family
Denial of Service
CVSSv2 Base
CVSSv2 Base
7.8
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Solution Type
Solution Type
Vendor Patch
Created
Created
6 years ago
Modified
Modified
4 years ago
Summary
This host is running OpenSSL and prone to denial of service vulnerability.
Insight
Insight
OpenSSL suffers from the possibility of DoS attack through sending a large OCSP Status Request extensions which lead to unbounded memory growth on the server which in turn lead to denial of service.
Affected Software
Affected Software
OpenSSL 1.1.0 and previous versions.
Solution
Solution
OpenSSL 1.1.0 users should upgrade to 1.1.0a. OpenSSL 1.0.2 users should upgrade to 1.0.2i. OpenSSL 1.0.1 users should upgrade to 1.0.1u.