Bulletins

OpenSSL has published a security advisory [0] about a vulnerability in OpenSSL versions 1.1.1 < 1.1.1k, that allows an unauthenticated attacker to cause a Denial-of-Service (DoS) if a maliciously crafted renegotiation message is sent. Siemens has released updates for several affected products and recommends to update to the latest versions. …

WIBU Systems published information about two vulnerabilities and an associated fix release version of CodeMeter Runtime, a product provided by WIBU Systems and used in several Siemens products for license management. The vulnerabilities are described in the section “Vulnerability Classification” below and got assigned the CVE IDs CVE-2021-20093 and CVE-2021-20094. …

On 2021-12-09, a vulnerability in Apache Log4j (a logging tool used in many Java-based applications) was disclosed, that could allow remote unauthenticated attackers to execute code on vulnerable systems. The vulnerability is tracked as CVE-2021-44228 and is also known as “Log4Shell”. On 2021-12-14 an additional denial of service vulnerability (CVE-2021-45046) …

A vulnerability in affected devices could allow an attacker to perform a denial-of-service attack if a large amount of Profinet Discovery and Configuration Protocol (DCP) reset packets is sent to the affected devices. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens …

A vulnerability exists in affected products that could allow remote attackers to affect the availability of the devices under certain conditions. The underlying TCP stack can be forced to make very computation expensive calls for every incoming packet which can lead to a Denial-of-Service.

Security researchers discovered and disclosed 33 vulnerabilities in several open-source TCP/IP stacks for embedded devices, also known as “AMNESIA:33” vulnerabilities. This advisory describes the impact of two of these vulnerabilities (CVE-2020-13987, CVE-2020-17437) to Siemens products. Siemens has released updates for several affected products and recommends to update to the latest …

A vulnerability in the affected devices could allow an unauthorized attacker with network access to the webserver of an affected device to perform a denial of service attack. Siemens has released updates for several affected products and recommends to update to the new versions. Siemens is preparing further updates and …