Lucet Instance Object 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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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Lucet. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component Instance Object Handler. Performing a manipulation results in use after free. This vulnerability is identified as CVE-2021-43790. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Lucet (version unknown). It has been classified as critical. This affects an unknown function of the component Instance Object Handler. 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 released 11/30/2021 as GHSA-hf79-8hjp-rrvq. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2021-43790 since 11/16/2021. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability. Applying the patch 7c7757c772fb709c61b1442bcc1e1fbee97bf4a8 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.5
CNA Vector (GitHub, Inc.): 🔍

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: Yes

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: 7c7757c772fb709c61b1442bcc1e1fbee97bf4a8

Timelineinfo

11/16/2021 🔍
11/30/2021 +14 days 🔍
11/30/2021 +0 days 🔍
12/03/2021 +3 days 🔍

Sourcesinfo

Advisory: GHSA-hf79-8hjp-rrvq
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-43790 (🔍)
GCVE (CVE): GCVE-0-2021-43790
GCVE (VulDB): GCVE-100-187341

Entryinfo

Created: 11/30/2021 09:34
Updated: 12/03/2021 01:12
Changes: 11/30/2021 09:34 (49), 12/03/2021 01:12 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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