{"id":"UBUNTU-CVE-2025-64702","details":"quic-go is an implementation of the QUIC protocol in Go. Versions 0.56.0 and below are vulnerable to excessive memory allocation through quic-go's HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame that decodes into a large header field section (many unique header names and/or large values). The implementation builds an http.Header (used on the http.Request and http.Response, respectively), while only enforcing limits on the size of the (QPACK-compressed) HEADERS frame, but not on the decoded header, leading to memory exhaustion. This issue is fixed in version 0.57.0.","modified":"2026-05-20T16:23:40.340685294Z","published":"2025-12-11T21:15:00Z","upstream":["CVE-2025-64702"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-64702"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-64702"},{"type":"REPORT","url":"https://github.com/quic-go/quic-go/commit/5b2d2129f8315da41e01eff0a847ab38a34e83a8"},{"type":"REPORT","url":"https://github.com/quic-go/quic-go/security/advisories/GHSA-g754-hx8w-x2g6"}],"affected":[{"package":{"name":"golang-github-lucas-clemente-quic-go","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/golang-github-lucas-clemente-quic-go?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.18.0-3","0.24.0-1","0.25.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.25.0-1","binary_name":"golang-github-lucas-clemente-quic-go-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64702.json"}},{"package":{"name":"golang-github-lucas-clemente-quic-go","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/golang-github-lucas-clemente-quic-go?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.37.4-1","0.38.2-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.38.2-1","binary_name":"golang-github-lucas-clemente-quic-go-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64702.json"}},{"package":{"name":"golang-github-lucas-clemente-quic-go","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/golang-github-lucas-clemente-quic-go?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.50.0-1","0.50.1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-lucas-clemente-quic-go-dev","binary_version":"0.50.1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64702.json"}},{"package":{"name":"golang-github-lucas-clemente-quic-go","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/golang-github-lucas-clemente-quic-go?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.50.1-2","0.59.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-lucas-clemente-quic-go-dev","binary_version":"0.59.0-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64702.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}