Espruino up to 1.98 jsparse.c memory corruption

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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 classified as critical has been found in Espruino up to 1.98. This affects some unknown processing of the file jsparse.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Espruino before 1.99 allows attackers to cause a denial of service (application crash) with a user crafted input file via a Buffer Overflow during syntax parsing of "VOID" tokens in jsparse.c.

The bug was discovered 05/19/2018. The weakness was disclosed 05/31/2018 (Website). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2018-11594 since 05/31/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

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 1.99 eliminates this vulnerability.

The entries 118471, 118470, 118469 and 118468 are pretty similar.

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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: Memory corruption
CWE: CWE-119
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 1.99

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-2018-11594 (🔍)
See also: 🔍

Entryinfoedit

Created: 06/01/2018 10:27 AM
Updated: 02/10/2020 03:57 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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