Espruino up to 1.97 jswrap_graphics.c out-of-bounds read

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.00

A vulnerability was found in Espruino up to 1.97. It has been declared as critical. Affected by this vulnerability is an unknown code of the file libs/graphics/jswrap_graphics.c. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-125. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Espruino before 1.98 allows attackers to cause a denial of service (application crash) with a user crafted input file via an Out-of-bounds Read during syntax parsing in which certain height validation is missing in libs/graphics/jswrap_graphics.c.

The bug was discovered 05/19/2018. The weakness was published 05/31/2018 (Website). The advisory is shared at github.com. This vulnerability is known as CVE-2018-11592 since 05/31/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 12 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.98 eliminates this vulnerability.

Similar entries are available at 118469, 118468, 118467 and 118466.

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CPE 2.3infoedit

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VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

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

NVD Base Score: 🔍

Exploitinginfoedit

Class: Information disclosure
CWE: CWE-125
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Espruino 1.98

Timelineinfoedit

05/19/2018 🔍
05/31/2018 +11 days 🔍
05/31/2018 +0 days 🔍
05/31/2018 +0 days 🔍
06/01/2018 +1 days 🔍
02/10/2020 +619 days 🔍

Sourcesinfoedit

Advisory: github.com
Status: Not defined

CVE: CVE-2018-11592 (🔍)
See also: 🔍

Entryinfoedit

Created: 06/01/2018 10:25 AM
Updated: 02/10/2020 03:51 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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