JerryScript 2.4.0 ecma-helpers.c ecma_is_lexical_environment use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in JerryScript 2.4.0 and classified as critical. This affects the function ecma_is_lexical_environment of the file ecma-helpers.c. The manipulation results in use after free. This vulnerability was named CVE-2021-26194. There is no available exploit.

Detailsinfo

A vulnerability was found in JerryScript 2.4.0. It has been classified as critical. Affected is the function ecma_is_lexical_environment of the file ecma-helpers.c. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 06/11/2021. The advisory is available at github.com. This vulnerability is traded as CVE-2021-26194. Technical details are known, but there is no available exploit.

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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Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/25/2021 🔍
06/11/2021 +136 days 🔍
06/11/2021 +0 days 🔍
06/13/2021 +2 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-26194 (🔍)
GCVE (CVE): GCVE-0-2021-26194
GCVE (VulDB): GCVE-100-176838

Entryinfo

Created: 06/11/2021 13:35
Updated: 06/13/2021 13:51
Changes: 06/11/2021 13:35 (36), 06/13/2021 13:51 (3)
Complete: 🔍
Cache ID: 216::103

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