{"id":"DEBIAN-CVE-2026-33845","details":"A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service.","modified":"2026-09-19T22:47:23.039666584Z","published":"2026-04-30T18:16:28.003Z","upstream":["CVE-2026-33845"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-33845"}],"affected":[{"package":{"name":"gnutls28","ecosystem":"Debian:12","purl":"pkg:deb/debian/gnutls28?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.7.9-2+deb12u7"}]}],"versions":["3.7.9-2","3.7.9-2+deb12u1","3.7.9-2+deb12u2","3.7.9-2+deb12u3","3.7.9-2+deb12u4","3.7.9-2+deb12u5","3.7.9-2+deb12u6"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33845.json"}},{"package":{"name":"gnutls28","ecosystem":"Debian:13","purl":"pkg:deb/debian/gnutls28?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8.9-3+deb13u4"}]}],"versions":["3.8.9-3","3.8.9-3+deb13u1","3.8.9-3+deb13u2","3.8.9-3+deb13u3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33845.json"}},{"package":{"name":"gnutls28","ecosystem":"Debian:14","purl":"pkg:deb/debian/gnutls28?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8.13-1"}]}],"versions":["3.8.10-1","3.8.10-2","3.8.10-3","3.8.11-1","3.8.11-2","3.8.11-3","3.8.12-1","3.8.12-2","3.8.12-3","3.8.12-4","3.8.9-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33845.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:H/I:N/A:H"}]}