ByteOS Network

CVE Vulnerability Details :

CVE-2021-27439

PUBLISHED

More Info Official Page

Assigner-icscert

Assigner Org ID-7d14cffa-0d7d-4270-9dc0-52cabd5a23a6

Published At-03 May, 2022 | 20:26

Updated At-16 Apr, 2025 | 16:24

▼CVE Numbering Authority (CNA)

TencentOS-tiny Integer Overflow or Wraparound

TencentOS-tiny version 3.1.0 is vulnerable to integer wrap-around in function 'tos_mmheap_alloc incorrect calculation of effective memory allocation size. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

Affected Products

Vendor

TencentOS-tiny

Product

TencentOS-tiny

Versions

Affected

3.1.0

Problem Types

Type	CWE ID	Description
CWE	CWE-190	CWE-190 Integer Overflow or Wraparound

Metrics

Version	Base score	Base severity	Vector
3.1	7.3	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Solutions

TencentOS-tiny update available

Credits

David Atch, Omri Ben Bassat, and Tamir Ariel from Microsoft Section 52, and the Azure Defender for IoT research group reported these vulnerabilities to CISA.

References

Hyperlink	Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04	x_refsource_CONFIRM

▼Authorized Data Publishers (ADP)

1. CVE Program Container

References

Hyperlink	Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04	x_refsource_CONFIRM x_transferred

2. CISA ADP Vulnrichment

Affected Products

Affected

Problem Types

Metrics

Metrics Other Info

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Exploits

Credits

Timeline

Replaced By

Rejected Reason

References

Affected Products

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References

Affected Products

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References