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CVE-2021-4327— SerenityOS TypedArray.cpp initialize_typed_array_from_array_buffer integer overflow

Quick assessment

Affected

n/a SerenityOS

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SerenityOS是一套用于x86计算机的图形化类Unix操作系统。 SerenityOS存在输入验证错误漏洞，该漏洞源于存在整数溢出漏洞。

CVSS 5.5 · Medium EPSS 0.93% · P60 Updated Jan 25, 2025

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

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I. Basic Information for CVE-2021-4327

Vulnerability Information

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Vulnerability Title

SerenityOS TypedArray.cpp initialize_typed_array_from_array_buffer integer overflow

Source: CVE Program / CVE List V5

Vulnerability Description

A vulnerability was found in SerenityOS. It has been rated as critical. Affected by this issue is the function initialize_typed_array_from_array_buffer in the library Userland/Libraries/LibJS/Runtime/TypedArray.cpp. The manipulation leads to integer overflow. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The patch is identified as f6c6047e49f1517778f5565681fb64750b14bf60. It is recommended to apply a patch to fix this issue. VDB-222074 is the identifier assigned to this vulnerability.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

整数溢出或超界折返

Source: CVE Program / CVE List V5

Vulnerability Title

SerenityOS 输入验证错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

SerenityOS是一套用于x86计算机的图形化类Unix操作系统。 SerenityOS存在输入验证错误漏洞，该漏洞源于存在整数溢出漏洞。

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

Vendor	Product	Affected Versions	CPE	Subscribe
-	SerenityOS	n/a	-

II. Public POCs for CVE-2021-4327

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2021-4327

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Patches & Fixes for CVE-2021-4327 (1)

https://github.com/SerenityOS/serenity/commit/f6c6047e49f1517778f5565681fb64750b14bf60 patch

Vendor Advisories for CVE-2021-4327 (2)

https://vuldb.com/?id.222074 vdb-entry technical-description
https://vuldb.com/?ctiid.222074 signature permissions-required

Other References for CVE-2021-4327 (1)

https://devcraft.io/2021/02/11/serenityos-writing-a-full-chain-exploit.html exploit

https://www.cve.org/CVERecord?id=CVE-2021-4327

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Showing top 20 of 40 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: SerenityOS

CVE-2026-94030
SerenityOS LibGfx BMPLoader.cpp decode_bmp_pixel_data intege

Same vendor: n/a

Same weakness: CWE-190

V. Comments for CVE-2021-4327

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CVE-2021-4327— SerenityOS TypedArray.cpp initialize_typed_array_from_array_buffer integer overflow

Quick assessment

Possible ATT&CK Techniques 1 AI

I. Basic Information for CVE-2021-4327

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2021-4327

III. Intelligence Information for CVE-2021-4327

Patches & Fixes for CVE-2021-4327 (1)

Vendor Advisories for CVE-2021-4327 (2)

Other References for CVE-2021-4327 (1)

Same Patch Batch · n/a · 2023-03-01 · 40 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2021-4327

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