Buffer Overflow Vulnerability in Cesanta Mongoose Web Server
CVE-2020-25756

9.8CRITICAL

Key Information:

Vendor

Cesanta

Status
Mongoose
Vendor
CVE Published:
18 September 2020

What is CVE-2020-25756?

A buffer overflow vulnerability has been identified in the mg_get_http_header function within Cesanta Mongoose version 6.18. This flaw arises from insufficient bounds checking, allowing an attacker to exploit the vulnerability by sending a specially crafted HTTP header. Although statements have been made suggesting that such an exploit is unlikely to occur in practice, the potential for abuse remains a concern for users of this web server.

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References

https://github.com/cesanta/mongoose/issues/1135
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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