{"id":"USN-4524-1","summary":"tnef vulnerabilities","details":"Paul Dreik discovered that TNEF incorrectly handled filenames. If a user\nwere tricked into opening a specially crafted email attachment, an\nattacker could possibly use this issue to write arbitrary files to the\nfilesystem or cause TNEF crash, resulting in a denial of service.\n(CVE-2019-18849)\n","modified":"2026-02-10T04:41:55Z","published":"2020-09-21T22:54:54Z","related":["UBUNTU-CVE-2019-18849"],"upstream":["CVE-2019-18849","UBUNTU-CVE-2019-18849"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4524-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-18849"}],"affected":[{"package":{"name":"tnef","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tnef@1.4.9-1+deb8u4build0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.9-1+deb8u4build0.16.04.1"}]}],"versions":["1.4.9-1","1.4.9-1+deb8u2build0.16.04.1","1.4.9-1+deb8u3build0.16.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4.9-1+deb8u4build0.16.04.1","binary_name":"tnef"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2019-18849","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4524-1.json"}}],"schema_version":"1.7.3"}