{"id":"ALSA-2023:6746","summary":"Important: nghttp2 security update","details":"libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 (HTTP/2) protocol in C.\n\nSecurity Fix(es):\n\n* HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","modified":"2026-01-30T01:14:57.115928Z","published":"2023-11-07T00:00:00Z","related":["CVE-2023-44487"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:6746"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2023-44487"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2242803"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2023-6746.html"}],"affected":[{"package":{"name":"libnghttp2","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/libnghttp2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.43.0-5.el9_3.1"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2023:6746.json"}},{"package":{"name":"libnghttp2-devel","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/libnghttp2-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.43.0-5.el9_3.1"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2023:6746.json"}},{"package":{"name":"nghttp2","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/nghttp2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.43.0-5.el9_3.1"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2023:6746.json"}}],"schema_version":"1.7.3"}