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OpenSSL OCSP Status Request extension unbounded memory growth Vulnerability (Linux)

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

3 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.

Common Vulnerabilities and Exposures (CVE)