CVE-2018-20819

HighCVSS 7.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 7.8/10CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/dropbox/lepton/issues/112Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/dropbox/lepton/issues/112Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Apr 23, 2019
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2018

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