https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 04:35:24 +0000 https://vulnerability.circl.lu/vuln/cve-2025-11677 <p><strong>Affected:</strong> warmcat libwebsockets</p> <p>Use After Free in WebSocket server implementation in lws_handshake_server in warmcat libwebsockets may allow an attacker, in specific configurations where the user provides a callback function that handles LWS_CALLBACK_HTTP_CONFIRM_UPGRADE, to achieve denial of service.</p> <p><strong>Affected:</strong> warmcat libwebsockets</p> <p>Use After Free in WebSocket server implementation in lws_handshake_server in warmcat libwebsockets may allow an attacker, in specific configurations where the user provides a callback function that handles LWS_CALLBACK_HTTP_CONFIRM_UPGRADE, to achieve denial of service.</p> https://vulnerability.circl.lu/vuln/cve-2025-11677 https://vulnerability.circl.lu/vuln/usn-8024-1 <p><strong>Affected:</strong> Ubuntu:Pro:20.04:LTS: libwebsockets, Ubuntu:22.04:LTS: libwebsockets, Ubuntu:Pro:24.04:LTS: libwebsockets</p> <p>Raffaele Bova discovered that Libwebsockets incorrectly handled memory when the upgrade header is not valid in the WebSocket server. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-11677)</p> <p>Raffaele Bova discovered that Libwebsockets did not properly check the size of the destination buffer in the async-dns component. An attacker could possibly use this issue to cause applications to crash, leading to a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2025-11678)</p> <p><strong>Affected:</strong> Ubuntu:Pro:20.04:LTS: libwebsockets, Ubuntu:22.04:LTS: libwebsockets, Ubuntu:Pro:24.04:LTS: libwebsockets</p> <p>Raffaele Bova discovered that Libwebsockets incorrectly handled memory when the upgrade header is not valid in the WebSocket server. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-11677)</p> <p>Raffaele Bova discovered that Libwebsockets did not properly check the size of the destination buffer in the async-dns component. An attacker could possibly use this issue to cause applications to crash, leading to a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2025-11678)</p> https://vulnerability.circl.lu/vuln/usn-8024-1