{"id":"CVE-2018-20819","aliases":["EUVD-2018-13361","GHSA-hv3f-fvpg-gw6q"],"status":"published","title":"io/ZlibCompression.cc in the decompression component in Dropbox Lepton 1.2.1 allows attackers to...","description":"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.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0098,"percentile":0.62457,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2019-04-23T13:53:36Z","modified":"2026-10-20T10:48:03Z","products":[{"vendor":"dropbox","product":"lepton"}],"references":[{"url":"https://github.com/dropbox/lepton/issues/112","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20819"},{"url":"https://github.com/advisories/GHSA-hv3f-fvpg-gw6q"}],"sources":{"cve":[{"id":"CVE-2018-20819","description":"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.","status":"published","published":"2019-04-23T13:53:36Z","modified":"2024-08-05T12:12:27.304Z","updated_at":"2026-11-02T14:34:59.872731Z"}],"euvd":[{"id":"EUVD-2018-13361","description":"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.","status":"published","published":"2019-04-23T13:53:36Z","modified":"2024-08-05T12:12:27Z","updated_at":"2026-11-03T02:39:29.769885Z"}],"ghsa":[{"id":"GHSA-hv3f-fvpg-gw6q","title":"io/ZlibCompression.cc in the decompression component in Dropbox Lepton 1.2.1 allows attackers to...","description":"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.","status":"published","published":"2022-05-24T16:44:09Z","modified":"2023-01-28T05:05:27Z","updated_at":"2026-11-02T14:44:20.513282Z"}],"nvd":[{"id":"CVE-2018-20819","description":"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.","status":"published","published":"2019-04-23T14:29:00.32Z","modified":"2026-06-17T01:53:32.53Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:04:55.136632Z"}],"osv":[{"id":"CVE-2018-20819","description":"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.","status":"published","published":"2019-04-23T14:29:00.32Z","modified":"2026-10-20T10:48:03.746388539Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:09.145458Z"}]}}