{"id":"UBUNTU-CVE-2024-11738","details":"A flaw was found in Rustls 0.23.13 and related APIs. This vulnerability allows denial of service (panic) via a fragmented TLS ClientHello message.","modified":"2026-05-20T16:08:43.223228643Z","published":"2024-12-06T15:15:00Z","upstream":["CVE-2024-11738"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-11738"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-11738"},{"type":"REPORT","url":"https://rustsec.org/advisories/RUSTSEC-2024-0399.html"},{"type":"REPORT","url":"https://github.com/rustls/rustls/issues/2227"}],"affected":[{"package":{"name":"rust-rustls","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/rust-rustls?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.21.6-3","0.21.7-1","0.21.9-1","0.21.10-1"],"ecosystem_specific":{"binaries":[{"binary_name":"librust-rustls-dev","binary_version":"0.21.10-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-11738.json"}},{"package":{"name":"rust-rustls","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/rust-rustls?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.23.25+ds-1","0.23.26+ds-1"],"ecosystem_specific":{"binaries":[{"binary_name":"librust-rustls-dev","binary_version":"0.23.26+ds-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-11738.json"}},{"package":{"name":"rust-rustls","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/rust-rustls?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.23.26+ds-1","0.23.33+ds-3build2","0.23.35+ds-1","0.23.35+ds-1build1","0.23.36+ds-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.23.36+ds-1","binary_name":"librust-rustls-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-11738.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":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}