{"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":"2026-07-08T20:04:30.783175Z","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":"c378cbfa2daaa99e8828be7395013f94cedb1bcc"},{"last_affected":"c378cbfa2daaa99e8828be7395013f94cedb1bcc"}],"database_specific":{"cpe":"cpe:2.3:a:dropbox:lepton:1.2.1:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.2.1"},{"last_affected":"1.2.1"}],"source":"CPE_STRING"}}],"versions":["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"}]}