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OpenSSL: OCSP Invalid Key DoS Issue (20130205) (Linux)

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

1 year ago

Modified

Modified

1 year ago

Summary

OpenSSL is prone to a denial of service attack.

Insight

Insight

OpenSSL does not properly perform signature verification for OCSP responses, which allows remote OCSP servers to cause a denial of service (NULL pointer dereference and application crash) via an invalid key.

Affected Software

Affected Software

OpenSSL 0.9.8 through 0.9.8x, 1.0.0 through 1.0.0j and 1.0.1 through 1.0.1c.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Update to version 0.9.8y, 1.0.0k, 1.0.1d or later.

Common Vulnerabilities and Exposures (CVE)