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OpenSSL: TLS Ephemeral ECDH Crashes (20110906) (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 TLS ephemeral ECDH crashes.

Insight

Insight

OpenSSL server code for ephemeral ECDH ciphersuites is not thread-safe, and furthermore can crash if a client violates the protocol by sending handshake messages in incorrect order.

Affected Software

Affected Software

OpenSSL 0.9.8 through 0.9.8r and 1.0.0 through 1.0.0d.

Detection Method

Detection Method

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

Solution

Solution

Update to version 1.0.0e or later.

Common Vulnerabilities and Exposures (CVE)