Espruino up to 1.98 jsutils.c integer overflow

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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 1.98 and classified as critical. This issue affects some unknown functionality of the file jsutils.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-190. Impacted is 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 an integer overflow during syntax parsing. This was addressed by fixing stack size detection on Linux in jsutils.c.

The bug was discovered 05/19/2018. The weakness was presented 05/31/2018 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2018-11590 since 05/31/2018. The attack may be initiated remotely. No form of authentication is needed for a successful 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.

See 118467, 118466, 118465 and 118464 for similar entries.

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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: 🔍

CVSSv2infoedit

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

NVD Base Score: 🔍

Exploitinginfoedit

Class: Memory corruption
CWE: CWE-190
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-2018-11590 (🔍)
See also: 🔍

Entryinfoedit

Created: 06/01/2018 10:24 AM
Updated: 02/10/2020 03:47 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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