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RedhatCVE-2021-3466

HistoryMar 25, 2021 - 7:15 p.m.

CVE-2021-3466

2021-03-2519:15:15

CWE-120

redhat

web.nvd.nist.gov

234

cve-2021-3466

nvd

libmicrohttpd

vulnerability

buffer overflow

data confidentiality

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.3

Confidence

High

EPSS

0.004

Percentile

72.2%

JSON

A flaw was found in libmicrohttpd. A missing bounds check in the post_process_urlencoded function leads to a buffer overflow, allowing a remote attacker to write arbitrary data in an application that uses libmicrohttpd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Only version 0.9.70 is vulnerable.

Affected configurations

Nvd

Vulners

Node

gnulibmicrohttpdMatch0.9.70

Node

redhatenterprise_linuxMatch6.0

redhatenterprise_linuxMatch7.0

redhatenterprise_linuxMatch8.0

Node

fedoraprojectfedoraMatch32

fedoraprojectfedoraMatch33

fedoraprojectfedoraMatch34

VendorProductVersionCPE
gnulibmicrohttpd0.9.70cpe:2.3:a:gnu:libmicrohttpd:0.9.70:*:*:*:*:*:*:*
redhatenterprise_linux6.0cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
redhatenterprise_linux7.0cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
redhatenterprise_linux8.0cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
fedoraprojectfedora32cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
fedoraprojectfedora34cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
gnu	libmicrohttpd	0.9.70	cpe:2.3:a:gnu:libmicrohttpd:0.9.70:::::::*
redhat	enterprise_linux	6.0	cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*
redhat	enterprise_linux	7.0	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
redhat	enterprise_linux	8.0	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
fedoraproject	fedora	32	cpe:2.3:o:fedoraproject:fedora:32:::::::*
fedoraproject	fedora	33	cpe:2.3:o:fedoraproject:fedora:33:::::::*
fedoraproject	fedora	34	cpe:2.3:o:fedoraproject:fedora:34:::::::*

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "libmicrohttpd",
    "versions": [
      {
        "version": "libmicrohttpd 0.9.70",
        "status": "affected"
      }
    ]
  }
]