Heap-Based Buffer Overflow in Dropbox Lepton Decompression Component
CVE-2018-20819

7.8HIGH

Key Information:

Vendor

Dropbox

Status
Lepton
Vendor
CVE Published:
23 April 2019

What is CVE-2018-20819?

The Dropbox Lepton version 1.2.1 is susceptible to a heap-based buffer overflow in its decompression component, primarily due to inadequate validation of header payload sizes in crafted JPG image files. This flaw could lead to a denial of service or potentially allow attackers to exploit other unspecified impacts. Developers should ensure rigorous checks for header payload lengths to prevent this issue.

References

https://github.com/dropbox/lepton/issues/112
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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