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CVE-2021-47970— Macaron Notes 5.5 Denial of Service via Buffer Overflow

CVSS 7.5 · High EPSS 0.05% · P16

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProductVersion RangeStatus
Macaron NotesMacaron Notes5.5affected
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I. Basic Information for CVE-2021-47970

Vulnerability Information
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Vulnerability Title
Macaron Notes 5.5 Denial of Service via Buffer Overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
Macaron Notes 5.5 contains a denial of service vulnerability that allows attackers to crash the application by creating notes with excessively long character strings. Attackers can generate a payload containing 350000 repeated characters and paste it into a note field to trigger application crash and stop functionality.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未经控制的内存分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
Macaron Notes 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Macaron Notes是Macaron公司的一款支持便签记录、日程整理与个性化主题管理的笔记应用。 Macaron Notes 5.5版本存在安全漏洞，该漏洞源于允许攻击者通过创建包含超长字符串的笔记导致拒绝服务，攻击者可生成包含350000个重复字符的有效载荷并粘贴到笔记字段中触发应用崩溃和功能停止。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Macaron NotesMacaron Notes 5.5 -

II. Public POCs for CVE-2021-47970

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III. Intelligence Information for CVE-2021-47970

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Vendor Advisories for CVE-2021-47970 (1)

Exploits & Public PoCs for CVE-2021-47970 (1)

IV. Related Vulnerabilities

Same weakness: CWE-789

V. Comments for CVE-2021-47970

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