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[email protected]CVE-2021-20236

HistoryMay 28, 2021 - 11:15 a.m.

CVE-2021-20236

2021-05-2811:15:07

CWE-787

CWE-120

[email protected]

web.nvd.nist.gov

123

zeromq

server

buffer overflow

cve-2021-20236

vulnerability

confidentiality

integrity

system availability

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

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

9.2 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

72.5%

JSON

A flaw was found in the ZeroMQ server in versions before 4.3.3. This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Affected configurations

Vulners

NVD

Node

zeromqzeromqRange≤4.3.3

VendorProductVersionCPE
zeromqzeromq*cpe:2.3:a:zeromq:zeromq:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
zeromq	zeromq	*	cpe:2.3:a:zeromq:zeromq::::::::

CNA Affected

[
  {
    "product": "zeromq",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "zeromq 4.3.3"
      }
    ]
  }
]