wolfSSL wolfMQTT 1.9 MqttClient_DecodePacket heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in wolfSSL wolfMQTT 1.9. This vulnerability affects the function MqttClient_DecodePacket. The manipulation leads to heap-based overflow. This vulnerability is listed as CVE-2021-45938. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in wolfSSL wolfMQTT 1.9. This issue affects the function MqttClient_DecodePacket. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability.

The weakness was presented 01/01/2022. The advisory is shared at bugs.chromium.org. The identification of this vulnerability is CVE-2021-45938 since 12/31/2021. Technical details are known, but no exploit is available.

Applying the patch 84d4b53122e0fa0280c7872350b89d5777dabbb2 is able to eliminate this problem. The bugfix is ready for download at github.com.

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

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Heap-based overflow
CWE: CWE-122 / 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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 84d4b53122e0fa0280c7872350b89d5777dabbb2

Timelineinfo

12/31/2021 🔍
01/01/2022 +1 days 🔍
01/01/2022 +0 days 🔍
01/05/2022 +4 days 🔍

Sourcesinfo

Product: github.com

Advisory: 84d4b53122e0fa0280c7872350b89d5777dabbb2
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-45938 (🔍)
GCVE (CVE): GCVE-0-2021-45938
GCVE (VulDB): GCVE-100-189533

Entryinfo

Created: 01/01/2022 10:33
Updated: 01/05/2022 14:10
Changes: 01/01/2022 10:33 (41), 01/05/2022 14:10 (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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