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MitreCVE-2021-26529

HistoryFeb 08, 2021 - 9:15 p.m.

CVE-2021-26529

2021-02-0821:15:13

CWE-787

mitre

web.nvd.nist.gov

cve-2021-26529

cesanta

mongoose

https server

vulnerability

remote attack

oob write

memory pool

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:P/A:P

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

AI Score

9.2

Confidence

High

EPSS

0.015

Percentile

86.7%

JSON

The mg_tls_init function in Cesanta Mongoose HTTPS server 7.0 and 6.7-6.18 (compiled with mbedTLS support) is vulnerable to remote OOB write attack via connection request after exhausting memory pool.

Affected configurations

Nvd

Node

cesantamongooseRange6.7–6.18

cesantamongooseMatch7.0

VendorProductVersionCPE
cesantamongoose*cpe:2.3:a:cesanta:mongoose:*:*:*:*:*:*:*:*
cesantamongoose7.0cpe:2.3:a:cesanta:mongoose:7.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cesanta	mongoose	*	cpe:2.3:a:cesanta:mongoose::::::::
cesanta	mongoose	7.0	cpe:2.3:a:cesanta:mongoose:7.0:::::::*

References

github.com/cesanta/mongoose/issues/1203

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:P/A:P

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

AI Score

9.2

Confidence

High

EPSS

0.015

Percentile

86.7%

JSON

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