An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).

The configuration functionality in the Intelligent Platform Management Interface (IPMI) baseboard management controller (BMC) implementation on Supermicro X11 and M11 based devices, with firmware versions through 3.17.02, allows remote authenticated users to execute arbitrary commands.

The web interface in the Intelligent Platform Management Interface (IPMI) baseboard management controller (BMC) implementation on Supermicro X11 and M11 based devices, with firmware versions before 3.17.02, allows remote authenticated users to execute arbitrary commands via a crafted request targeting vulnerable cgi endpoints.

A web server in the Intelligent Platform Management Interface (IPMI) baseboard management controller (BMC) implementation on Supermicro X11 and M11 based devices, with firmware versions up to 3.17.02, allows remote unauthenticated users to perform directory traversal, potentially disclosing sensitive information.

Buffer Overflow vulnerability in Supermicro motherboard X12DPG-QR 1.4b allows local attackers to hijack control flow via manipulation of SmcSecurityEraseSetupVar variable.

Supermicro X11SSL-CF HW Rev 1.01, BMC firmware v1.63 was discovered to contain insecure permissions.

On Supermicro H11, H12, M11, X9, X10, and X11 products, a combination of encryption and authentication problems in the virtual media service allows capture of BMC credentials and data transferred over virtual media devices. Attackers can use captured credentials to connect virtual USB devices to the server managed by the BMC.

On Supermicro X10 and X11 products, a client's access privileges may be transferred to a different client that later has the same socket file descriptor number. In opportunistic circumstances, an attacker can simply connect to the virtual media service, and then connect virtual USB devices to the server managed by the BMC.

In CPUID CPU-Z before 1.43, there is an arbitrary memory write that results directly in elevation of privileges, because any program running on the local machine (while CPU-Z is running) can issue an ioctl 0x9C402430 call to the kernel-mode driver (e.g., cpuz141_x64.sys for version 1.41).

In CPUID CPU-Z through 1.81, there are improper access rights to a kernel-mode driver (e.g., cpuz143_x64.sys for version 1.43) that can result in information disclosure or elevation of privileges, because of an arbitrary read of any physical address via ioctl 0x9C402604. Any application running on the system (Windows), including sandboxed users, can issue an ioctl to this driver without any validation. Furthermore, the driver can map any physical page on the system and returns the allocated map page address to the user: that results in an information leak and EoP. NOTE: the vendor indicates that the arbitrary read itself is intentional behavior (for ACPI scan functionality); the security issue is the lack of an ACL.