OESA-2025-2611 libwebsockets security update

Libwebsockets LWS is a flexible, lightweight pure C library for implementing modern network protocols easily with a tiny footprint, using a nonblocking event loop. Security Fixes: Use After Free vulnerability exists in the WebSocket server implementation in lwshandshakeserver in warmcat...

CVE-2025-11678

Stack-based Buffer Overflow in lwsadnsparselabel in warmcat libwebsockets allows, when the LWSWITHSYSASYNCDNS flag is enabled during compilation, to overflow the labelstack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer...

PT-2025-42761

Name of the Vulnerable Software and Affected Versions libwebsockets affected versions not specified Description A stack-based buffer overflow exists in the lws adns parse label function within libwebsockets. This occurs when the LWS WITH SYS ASYNC DNS flag is enabled during compilation and an...

NewStart CGSL MAIN 6.02 : dhcp Multiple Vulnerabilities (NS-SA-2024-0061)

The remote NewStart CGSL host, running version MAIN 6.02, has dhcp packages installed that are affected by multiple vulnerabilities: - An integer overflow vulnerability was found in the DHCP server. When the optioncodehashlookup function is called from addoption, it increases the option's refcoun...

CVE-2022-2929

A vulnerability was found in the DHCP server where the "fqdnuniversedecode" function allocates buffer space for the contents of option 81 fqdn data received in a DHCP packet. The maximum length of a DNS "label" is 63 bytes. The function tests the length byte of each label contained in the "fqdn";...

Data Exfiltration over DNS Request Covert Channel: DNSExfiltrator

DNSExfiltrator allows for transfering exfiltrate a file over a DNS request covert channel. This is basically a data leak testing tool allowing to exfiltrate data over a covert channel. DNSExfiltrator has two sides: 1. The server side , coming as a single python script dnsexfiltrator.py , which ac...

DNS Label Compression Recursion Denial of Service - Ver2 (CVE-2007-1030)

A denial-of-service vulnerability has been reported in Niels Provos Libevent. Successful exploitation of this vulnerability would allow a remote attacker to create a denial of service condition on the affected system...