An Improper Certificate Validation issue was discovered in Smiths Medical Medfusion 4000 Wireless Syringe Infusion Pump, Version 1.1, 1.5, and 1.6. The pump does not validate host certificates, leaving the pump vulnerable to a man-in-the-middle (MITM) attack.

An Improper Certificate Validation issue was discovered in Smiths Medical Medfusion 4000 Wireless Syringe Infusion Pump, Version 1.1, 1.5, and 1.6. The pump does not validate host certificates, leaving the pump vulnerable to a man-in-the-middle (MITM) attack.

A third-party component used in the pump does not verify input buffer size prior to copying, leading to a buffer overflow, allowing remote code execution on the target device. The pump receives the potentially malicious input infrequently and under certain conditions, increasing the difficulty of exploitation. CVE-2017-12718 been assigned to this vulnerability. A CVSS v3 base score of 8.1 has been assigned; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H). A third-party component used in the pump does not verify input buffer size prior to copying, leading to a buffer overflow, allowing remote code execution on the target device. The pump receives the potentially malicious input infrequently and under certain conditions, increasing the difficulty of exploitation. CVE-2017-12718 been assigned to this vulnerability. A CVSS v3 base score of 8.1 has been assigned; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H). A third-party component used in the pump reads memory out of bounds, causing the communications module to crash. Smiths Medical assesses that the crash of the communications module would not impact the operation of the therapeutic module. CVE-2017-12722 been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L). A third-party component used in the pump does not verify input buffer size prior to copying, leading to a buffer overflow, allowing remote code…