{"id":"CVE-2018-20819","details":"io/ZlibCompression.cc in the decompression component in Dropbox Lepton 1.2.1 allows attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact by crafting a jpg image file. The root cause is a missing check of header payloads that may be (incorrectly) larger than the maximum file size.","modified":"2026-03-14T09:29:04.647205Z","published":"2019-04-23T14:29:00.320Z","references":[{"type":"FIX","url":"https://github.com/dropbox/lepton/issues/112"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/dropbox/lepton","events":[{"introduced":"0"},{"last_affected":"c378cbfa2daaa99e8828be7395013f94cedb1bcc"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"1.2.1"}]}}],"versions":["1.0","1.1","1.2","1.2.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20819.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}