{"id":"DEBIAN-CVE-2023-45288","details":"An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.","modified":"2026-09-15T09:02:46.138771264Z","published":"2024-04-04T21:15:16.113Z","upstream":["CVE-2023-45288"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-45288"}],"affected":[{"package":{"name":"golang-1.19","ecosystem":"Debian:12","purl":"pkg:deb/debian/golang-1.19?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.19.10-1","1.19.10-2","1.19.11-1","1.19.12-1","1.19.12-2","1.19.12-2~bpo11+1","1.19.12-2~bpo12+1","1.19.13-1","1.19.13-1~bpo11+1","1.19.13-1~bpo12+1","1.19.8-2","1.19.9-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-45288.json"}},{"package":{"name":"golang-golang-x-net","ecosystem":"Debian:12","purl":"pkg:deb/debian/golang-golang-x-net?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.10.0-1","1:0.11.0-1","1:0.14.0-1","1:0.15.0-1","1:0.15.0-2","1:0.17.0+dfsg-1","1:0.19.0+dfsg-1","1:0.20.0+dfsg-1","1:0.21.0+dfsg-1","1:0.22.0+dfsg-1","1:0.23.0+dfsg-1","1:0.24.0+dfsg-1","1:0.25.0+dfsg-1","1:0.26.0+dfsg-1","1:0.26.0+dfsg-2","1:0.27.0-1","1:0.27.0-2","1:0.47.0-1","1:0.47.0-2","1:0.53.0-1","1:0.53.0-2","1:0.53.0-2~bpo13+1","1:0.55.0-1","1:0.56.0-1","1:0.57.0-1","1:0.58.0-1","1:0.7.0+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-45288.json"}},{"package":{"name":"golang-golang-x-net","ecosystem":"Debian:13","purl":"pkg:deb/debian/golang-golang-x-net?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:0.23.0+dfsg-"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-45288.json"}},{"package":{"name":"golang-golang-x-net","ecosystem":"Debian:14","purl":"pkg:deb/debian/golang-golang-x-net?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:0.23.0+dfsg-"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-45288.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}