#dos

Werkzeug is a comprehensive WSGI web application library. If an upload of a file that starts with CR or LF and then is followed by megabytes of data without these characters: all of these bytes are appended chunk by chunk into internal bytearray and lookup for boundary is performed on growing buffer. This allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it. The amount of CPU time required can block worker processes from handling legitimate requests. This vulnerability has been patched in version 3.0.1.

Potential buffer overflows in the Bluetooth subsystem due to asserts being disabled in /subsys/bluetooth/host/hci_core.c

Missing authentication in the SetDB method in IDAttend’s IDWeb application 3.1.052 and earlier allows denial of service or theft of database login credentials.

A heap-based Buffer Overflow flaw was discovered in Samba. It could allow a remote, authenticated attacker to exploit this vulnerability to cause a denial of service.

Double Free vulnerability in Nothings Stb Image.h v.2.28 allows a remote attacker to cause a denial of service via a crafted file to the stbi_load_gif_main function.

ReDos in NPMJS Node Email Check v.1.0.4 allows an attacker to cause a denial of service via a crafted string to the scpSyntax component.

IBM TXSeries for Multiplatforms, 8.1, 8.2, and 9.1, CICS TX Standard CICS TX Advanced 10.1 and 11.1 could allow a privileged user to cause a denial of service due to uncontrolled resource consumption. IBM X-Force ID: 266016.

A denial of service vulnerability was reported in the Lenovo HardwareScanPlugin versions prior to 1.3.1.2 and  Lenovo Diagnostics versions prior to 4.45 that could allow a local user with administrative access to trigger a system crash.

Attackers could exploit these vulnerabilities in the SoftEther VPN solution for individual and enterprise users to force users to drop their connections or execute arbitrary code on the targeted machine.

Werkzeug multipart data parser needs to find a boundary that may be between consecutive chunks. That's why parsing is based on looking for newline characters. Unfortunately, code looking for partial boundary in the buffer is written inefficiently, so if we upload a file that starts with CR or LF and then is followed by megabytes of data without these characters: all of these bytes are appended chunk by chunk into internal bytearray and lookup for boundary is performed on growing buffer. This allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it. The amount of CPU time required can block worker processes from handling legitimate requests. The amount of RAM required can trigger an out of memory kill of the process. If many concurrent requests are sent continuously, this can exhaust or kill all available workers.