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[email protected]CVE-2021-3404

HistoryMar 04, 2021 - 10:15 p.m.

CVE-2021-3404

2021-03-0422:15:14

CWE-787

CWE-119

[email protected]

web.nvd.nist.gov

ytnef

cve-2021-3404

denial-of-service

code execution

heap buffer overflow

remote attackers

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

45.6%

JSON

In ytnef 1.9.3, the SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a heap buffer overflow which can be triggered via a crafted file.

Affected configurations

NVD

Node

ytnef_projectytnefMatch1.9.3

Node

redhatenterprise_linuxMatch7.0

Node

fedoraprojectfedoraMatch33

CPENameOperatorVersion
ytnef_project:ytnefytnef project ytnefeq1.9.3

CPE	Name	Operator	Version
ytnef_project:ytnef	ytnef project ytnef	eq	1.9.3

CNA Affected

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