Unicode Specification up to 14.0 Bidirectional Algorithm source code ⚔ [Disputed]

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Unicode Specification up to 14.0. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the component Bidirectional Algorithm. The manipulation leads to source code. This vulnerability is documented as CVE-2021-42574. The attack can be initiated remotely. Additionally, an exploit exists. It is still unclear if this vulnerability genuinely exists.

Detailsinfo

A vulnerability was found in Unicode Specification up to 14.0 and classified as problematic. This issue affects an unknown function of the component Bidirectional Algorithm. The manipulation with an unknown input leads to a source code vulnerability. Using CWE to declare the problem leads to CWE-18. Impacted is confidentiality, integrity, and availability.

The weakness was released 11/01/2021. The advisory is shared at unicode.org. The identification of this vulnerability is CVE-2021-42574 since 10/18/2021. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available.

The exploit is available at trojansource.codes. It is declared as proof-of-concept. The real existence of this vulnerability is still doubted at the moment.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.0
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Source code
CWE: CWE-18 / CWE-17
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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

10/18/2021 🔍
11/01/2021 +14 days 🔍
11/01/2021 +0 days 🔍
05/02/2025 +1278 days 🔍

Sourcesinfo

Advisory: unicode.org
Status: Confirmed
Disputed: 🔍

CVE: CVE-2021-42574 (🔍)
GCVE (CVE): GCVE-0-2021-42574
GCVE (VulDB): GCVE-100-185801
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/01/2021 08:50
Updated: 05/02/2025 23:11
Changes: 11/01/2021 08:50 (39), 11/04/2021 09:40 (1), 11/04/2021 09:41 (18), 06/12/2024 04:30 (24), 08/04/2024 07:03 (2), 05/02/2025 23:11 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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