JerryScript 1.0 JS File jmem_heap_alloc_block_internal memory corruption

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CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

A vulnerability, which was classified as critical, has been found in JerryScript 1.0. This issue affects the function jmem_heap_alloc_block_internal of the component JS File Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

JerryScript 1.0 allows remote attackers to cause a denial of service (jmem_heap_alloc_block_internal heap memory corruption) or possibly execute arbitrary code via a crafted .js file, because unrecognized \ characters cause incorrect 0x00 characters in bytecode.literal data.

The bug was discovered 09/07/2017. The weakness was published 09/26/2017 (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2017-14749 since 09/26/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/20/2019).

The vulnerability was handled as a non-public zero-day exploit for at least 19 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

09/07/2017 🔍
09/26/2017 +19 days 🔍
09/26/2017 +0 days 🔍
09/26/2017 +0 days 🔍
09/27/2017 +1 days 🔍
11/20/2019 +784 days 🔍

Sourcesinfoedit

Advisory: github.com
Status: Not defined

CVE: CVE-2017-14749 (🔍)

Entryinfoedit

Created: 09/27/2017 08:52 AM
Updated: 11/20/2019 07:30 AM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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