Espruino up to 1.98 jslex.c memory corruption

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CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

A vulnerability was found in Espruino up to 1.98. It has been rated as problematic. Affected by this issue is an unknown code block of the file jslex.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. Impacted is availability. CVE summarizes:

Espruino before 1.99 allows attackers to cause a denial of service (application crash) and potential Information Disclosure with a user crafted input file via a Buffer Overflow during syntax parsing because strncpy is misused in jslex.c.

The bug was discovered 05/19/2018. The weakness was released 05/31/2018 (Website). The advisory is available at github.com. This vulnerability is handled as CVE-2018-11593 since 05/31/2018. The attack may be launched remotely. No form of authentication is required for exploitation. 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.

Entries connected to this vulnerability are available at 118470, 118469, 118468 and 118467.

Productinfoedit

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CPE 2.3infoedit

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CVSSv3infoedit

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.0

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
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-2018-11593 (🔍)
See also: 🔍

Entryinfoedit

Created: 06/01/2018 10:26 AM
Updated: 02/10/2020 03:54 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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