#dos

As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global).  View CSAF 1. EXECUTIVE SUMMARY CVSS v3 7.5 ATTENTION: Exploitable remotely/low attack complexity Vendor: Siemens Equipment: SCALANCE XM-400/XR-500 Vulnerabilities: Inadequate Encryption Strength, Double Free, Use-After-Free, Improper Input Validation, Improper Certificate Validation 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to cause a memory leak or execute arbitrary code. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following Siemens products, are affected: Siemens SCALANCE XM408-4C (6GK5408-4GP00-2AM2): All versions prior to V6.6.1 Siemens SCALANCE XM408-4C (L3 int.) (6GK5408-4GQ00-2AM2): All versions prior to V6.6.1 Sieme...

Critical infrastructure is facing increasingly disruptive threats to physical processes, while thousands of devices are online with weak authentication and riddled with exploitable bugs.

An issue in vektah gqlparser open-source-library v.2.5.10 allows a remote attacker to cause a denial of service via a crafted script to the parserDirectives function.

In any realm set with "User (Self) registration" a user that is registered with a username in email format can be "locked out" (denied from logging in) using his username.

### Summary A Denial-of-Service was found in the media upload process causing the server to crash without restarting, affecting either development and production environments. ### Details Usually, errors in the application cause it to log the error and keep it running for other clients. This behavior, in contrast, stops the server execution, making it unavailable for any clients until it's manually restarted. ### PoC Due to a bug in what we believe to be Burp’s decoding system, we couldn’t produce a valid file to easily reproduce the vulnerability. Instead, the issue can be reproduced by following these steps: 1. Configure Burp’s proxy between a browser and a Strapi server 2. Log in and upload an image through the Media Library page while having Burp’s interceptor turned on 3. After capturing the upload POST request in Burp, add `%00` at the end of the file extension from the `Content-Disposition`, in the filename parameter (See reference image 1 below) 4. Using the cursor, select t...

Debian Linux Security Advisory 5708-1 - Damian Poddebniak discovered that the Cyrus IMAP server didn't restrict memory allocation for some command arguments which may result in denial of service. This update backports new config directives which allow to configure limits, additional details can be found at.

Ubuntu Security Notice 6830-1 - It was discovered that libndp incorrectly handled certain malformed IPv6 router advertisement packets. A local attacker could use this issue to cause NetworkManager to crash, resulting in a denial of service, or possibly execute arbitrary code.

Ubuntu Security Notice 6819-2 - Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel did not properly validate H2C PDU data, leading to a null pointer dereference vulnerability. A remote attacker could use this to cause a denial of service. Chenyuan Yang discovered that the RDS Protocol implementation in the Linux kernel contained an out-of-bounds read vulnerability. An attacker could use this to possibly cause a denial of service.

Ubuntu Security Notice 6821-3 - It was discovered that the ATA over Ethernet driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the Atheros 802.11ac wireless driver did not properly validate certain data structures, leading to a NULL pointer dereference. An attacker could possibly use this to cause a denial of service.

Ubuntu Security Notice 6820-2 - It was discovered that the ATA over Ethernet driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the Atheros 802.11ac wireless driver did not properly validate certain data structures, leading to a NULL pointer dereference. An attacker could possibly use this to cause a denial of service.