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CVE-2018-20820

Date: April 23, 2019

read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service (application runtime crash because of an integer overflow) via a crafted file.

Language: C++

Severity Score

Related Resources (4)

https://github.com/dropbox/lepton/issues/111
https://github.com/dropbox/lepton/commit/6a5ceefac1162783fffd9506a3de39c85c725761
https://nvd.nist.gov/vuln/detail/CVE-2018-20820
https://www.mend.io/vulnerability-database/CVE-2018-20820

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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