{"id":"UBUNTU-CVE-2026-44378","details":"Botan is a C++ cryptography library. Prior to 3.12.0, certain patterns of indefinite length encodings in BER data could cause quadratic behavior in the parser, resulting in a denial of service. Such BER encodings were accepted even in structures which are required to be encoded as DER, which prohibits indefinite length encodings. This vulnerability is fixed in 3.12.0.","modified":"2026-06-04T12:45:33.604269362Z","published":"2026-05-27T18:16:00Z","upstream":["CVE-2026-44378"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-44378"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-44378"},{"type":"REPORT","url":"https://github.com/randombit/botan/security/advisories/GHSA-7q2v-3g27-6g3j"}],"affected":[{"package":{"name":"botan3","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/botan3?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.7.1+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_name":"botan","binary_version":"3.7.1+dfsg-2"},{"binary_name":"libbotan-3-7","binary_version":"3.7.1+dfsg-2"},{"binary_name":"python3-botan","binary_version":"3.7.1+dfsg-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44378.json"}},{"package":{"name":"botan3","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/botan3?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.7.1+dfsg-2","3.10.0+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_name":"botan","binary_version":"3.10.0+dfsg-2"},{"binary_name":"libbotan-3-10","binary_version":"3.10.0+dfsg-2"},{"binary_name":"python3-botan","binary_version":"3.10.0+dfsg-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44378.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"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"}]}