Cesanta Software Mongoose-OS Integer Overflow or Wraparound
CVE-2021-27425

7.3HIGH

Key Information:

Vendor

Cesanta Software

Status
Mongoose-os
Vendor
CVE Published:
3 May 2022

What is CVE-2021-27425?

Cesanta Software Mongoose-OS v2.17.0 is vulnerable to integer wrap-around in function mm_malloc. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

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Deploy the Patch

Affected Version(s)

Mongoose-OS 2.17.0

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04
x_refsource_CONFIRM
https://github.com/cesanta/mongoose-os
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CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

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.
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