{"schema_version":"1.7.2","id":"OESA-2025-2611","modified":"2025-10-31T14:13:58Z","published":"2025-10-31T14:13:58Z","upstream":["CVE-2025-11677","CVE-2025-11678"],"summary":"libwebsockets security update","details":"Libwebsockets (LWS) is a flexible, lightweight pure C library for implementing modern network protocols easily with a tiny footprint, using a nonblocking event loop.\r\n\r\nSecurity Fix(es):\n\nUse After Free vulnerability exists in the WebSocket server implementation in lws_handshake_server in warmcat libwebsockets. In specific configurations where the user provides a callback function that handles LWS_CALLBACK_HTTP_CONFIRM_UPGRADE, an attacker may achieve denial of service.(CVE-2025-11677)\n\nStack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum.(CVE-2025-11678)","affected":[{"package":{"ecosystem":"openEuler:22.03-LTS-SP4","name":"libwebsockets","purl":"pkg:rpm/openEuler/libwebsockets&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.0-7.oe2203sp4"}]}],"ecosystem_specific":{"aarch64":["libwebsockets-4.3.0-7.oe2203sp4.aarch64.rpm","libwebsockets-debuginfo-4.3.0-7.oe2203sp4.aarch64.rpm","libwebsockets-debugsource-4.3.0-7.oe2203sp4.aarch64.rpm","libwebsockets-devel-4.3.0-7.oe2203sp4.aarch64.rpm"],"noarch":["libwebsockets-help-4.3.0-7.oe2203sp4.noarch.rpm"],"src":["libwebsockets-4.3.0-7.oe2203sp4.src.rpm"],"x86_64":["libwebsockets-4.3.0-7.oe2203sp4.x86_64.rpm","libwebsockets-debuginfo-4.3.0-7.oe2203sp4.x86_64.rpm","libwebsockets-debugsource-4.3.0-7.oe2203sp4.x86_64.rpm","libwebsockets-devel-4.3.0-7.oe2203sp4.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:24.03-LTS","name":"libwebsockets","purl":"pkg:rpm/openEuler/libwebsockets&distro=openEuler-24.03-LTS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-4.oe2403sp2"}]}],"ecosystem_specific":{"aarch64":["libwebsockets-4.3.3-4.oe2403.aarch64.rpm","libwebsockets-debuginfo-4.3.3-4.oe2403.aarch64.rpm","libwebsockets-debugsource-4.3.3-4.oe2403.aarch64.rpm","libwebsockets-devel-4.3.3-4.oe2403.aarch64.rpm","libwebsockets-4.3.3-4.oe2403sp1.aarch64.rpm","libwebsockets-debuginfo-4.3.3-4.oe2403sp1.aarch64.rpm","libwebsockets-debugsource-4.3.3-4.oe2403sp1.aarch64.rpm","libwebsockets-devel-4.3.3-4.oe2403sp1.aarch64.rpm","libwebsockets-4.3.3-4.oe2403sp2.aarch64.rpm","libwebsockets-debuginfo-4.3.3-4.oe2403sp2.aarch64.rpm","libwebsockets-debugsource-4.3.3-4.oe2403sp2.aarch64.rpm","libwebsockets-devel-4.3.3-4.oe2403sp2.aarch64.rpm"],"noarch":["libwebsockets-help-4.3.3-4.oe2403.noarch.rpm","libwebsockets-help-4.3.3-4.oe2403sp1.noarch.rpm","libwebsockets-help-4.3.3-4.oe2403sp2.noarch.rpm"],"src":["libwebsockets-4.3.3-4.oe2403.src.rpm","libwebsockets-4.3.3-4.oe2403sp1.src.rpm","libwebsockets-4.3.3-4.oe2403sp2.src.rpm"],"x86_64":["libwebsockets-4.3.3-4.oe2403.x86_64.rpm","libwebsockets-debuginfo-4.3.3-4.oe2403.x86_64.rpm","libwebsockets-debugsource-4.3.3-4.oe2403.x86_64.rpm","libwebsockets-devel-4.3.3-4.oe2403.x86_64.rpm","libwebsockets-4.3.3-4.oe2403sp1.x86_64.rpm","libwebsockets-debuginfo-4.3.3-4.oe2403sp1.x86_64.rpm","libwebsockets-debugsource-4.3.3-4.oe2403sp1.x86_64.rpm","libwebsockets-devel-4.3.3-4.oe2403sp1.x86_64.rpm","libwebsockets-4.3.3-4.oe2403sp2.x86_64.rpm","libwebsockets-debuginfo-4.3.3-4.oe2403sp2.x86_64.rpm","libwebsockets-debugsource-4.3.3-4.oe2403sp2.x86_64.rpm","libwebsockets-devel-4.3.3-4.oe2403sp2.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:24.03-LTS-SP1","name":"libwebsockets","purl":"pkg:rpm/openEuler/libwebsockets&distro=openEuler-24.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-4.oe2403sp1"}]}],"ecosystem_specific":{"aarch64":["libwebsockets-4.3.3-4.oe2403sp1.aarch64.rpm","libwebsockets-debuginfo-4.3.3-4.oe2403sp1.aarch64.rpm","libwebsockets-debugsource-4.3.3-4.oe2403sp1.aarch64.rpm","libwebsockets-devel-4.3.3-4.oe2403sp1.aarch64.rpm"],"noarch":["libwebsockets-help-4.3.3-4.oe2403sp1.noarch.rpm"],"src":["libwebsockets-4.3.3-4.oe2403sp1.src.rpm"],"x86_64":["libwebsockets-4.3.3-4.oe2403sp1.x86_64.rpm","libwebsockets-debuginfo-4.3.3-4.oe2403sp1.x86_64.rpm","libwebsockets-debugsource-4.3.3-4.oe2403sp1.x86_64.rpm","libwebsockets-devel-4.3.3-4.oe2403sp1.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:24.03-LTS-SP2","name":"libwebsockets","purl":"pkg:rpm/openEuler/libwebsockets&distro=openEuler-24.03-LTS-SP2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-4.oe2403sp2"}]}],"ecosystem_specific":{"aarch64":["libwebsockets-4.3.3-4.oe2403sp2.aarch64.rpm","libwebsockets-debuginfo-4.3.3-4.oe2403sp2.aarch64.rpm","libwebsockets-debugsource-4.3.3-4.oe2403sp2.aarch64.rpm","libwebsockets-devel-4.3.3-4.oe2403sp2.aarch64.rpm"],"noarch":["libwebsockets-help-4.3.3-4.oe2403sp2.noarch.rpm"],"src":["libwebsockets-4.3.3-4.oe2403sp2.src.rpm"],"x86_64":["libwebsockets-4.3.3-4.oe2403sp2.x86_64.rpm","libwebsockets-debuginfo-4.3.3-4.oe2403sp2.x86_64.rpm","libwebsockets-debugsource-4.3.3-4.oe2403sp2.x86_64.rpm","libwebsockets-devel-4.3.3-4.oe2403sp2.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:20.03-LTS-SP4","name":"libwebsockets","purl":"pkg:rpm/openEuler/libwebsockets&distro=openEuler-20.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.0-7.oe2003sp4"}]}],"ecosystem_specific":{"aarch64":["libwebsockets-4.3.0-7.oe2003sp4.aarch64.rpm","libwebsockets-debuginfo-4.3.0-7.oe2003sp4.aarch64.rpm","libwebsockets-debugsource-4.3.0-7.oe2003sp4.aarch64.rpm","libwebsockets-devel-4.3.0-7.oe2003sp4.aarch64.rpm"],"noarch":["libwebsockets-help-4.3.0-7.oe2003sp4.noarch.rpm"],"src":["libwebsockets-4.3.0-7.oe2003sp4.src.rpm"],"x86_64":["libwebsockets-4.3.0-7.oe2003sp4.x86_64.rpm","libwebsockets-debuginfo-4.3.0-7.oe2003sp4.x86_64.rpm","libweb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