Dropbox Lepton 1.2.1 Application Runtime jpgcoder.cc read_ujpg integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Dropbox Lepton 1.2.1. Affected by this vulnerability is the function read_ujpg of the file jpgcoder.cc of the component Application Runtime. The manipulation results in integer overflow. This vulnerability is known as CVE-2018-20820. Attacking locally is a requirement. No exploit is available.

Detailsinfo

A vulnerability was found in Dropbox Lepton 1.2.1 (Cloud Software). It has been classified as problematic. Affected is the function read_ujpg of the file jpgcoder.cc of the component Application Runtime. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on availability. CVE summarizes:

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.

The weakness was published 04/23/2019. This vulnerability is traded as CVE-2018-20820 since 04/23/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entry is available at VDB-133979. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

04/23/2019 🔍
04/23/2019 +0 days 🔍
04/23/2019 +0 days 🔍
09/06/2023 +1597 days 🔍

Sourcesinfo

Advisory: 6a5ceefac1162783fffd9506a3de39c85c725761
Status: Not defined

CVE: CVE-2018-20820 (🔍)
GCVE (CVE): GCVE-0-2018-20820
GCVE (VulDB): GCVE-100-133980
See also: 🔍

Entryinfo

Created: 04/23/2019 19:32
Updated: 09/06/2023 15:34
Changes: 04/23/2019 19:32 (38), 06/01/2020 15:04 (18), 09/06/2023 15:34 (5)
Complete: 🔍
Cache ID: 216::103

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