Espruino up to 1.98 jsparse.c memory corruption

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CVSS Meta Temp Score
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5.2$0-$5k0.00

A vulnerability, which was classified as critical, was found in Espruino up to 1.98. Affected is some unknown functionality 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. CVE summarizes:

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 because of a missing check for stack exhaustion with many '{' characters in jsparse.c.

The bug was discovered 05/19/2018. The weakness was published 05/31/2018 (Website). The advisory is available at github.com. This vulnerability is traded as CVE-2018-11597 since 05/31/2018. 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. Technical details 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.

Similar entries are available at 118471, 118469, 118468 and 118467.

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CPE 2.3infoedit

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CVSSv3infoedit

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-2018-11597 (🔍)
See also: 🔍

Entryinfoedit

Created: 06/01/2018 10:32 AM
Updated: 02/10/2020 04:12 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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