CVE-2018-20819

HIGH

Dropbox Lepton 1.2.1 - Heap-Based Buffer Overflow in Decompression Component

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://github.com/dropbox/lepton/issues/112

Scores

CVSS v3 7.8
EPSS 0.0098
EPSS Percentile 58.1%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (1)
dropbox/lepton 1.2.1
Published Apr 23, 2019
Tracked Since Feb 18, 2026