PT-2023-12423 · Unknown · Serenityos

William Bowling · CVE-2021-4327 · Published 2023-03-01 · Updated 2024-05-17

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions SerenityOS (affected versions not specified)

Description A critical issue has been found in SerenityOS, affecting the function initialize typed array from array buffer in the library Userland/Libraries/LibJS/Runtime/TypedArray.cpp. This issue leads to integer overflow. The exploit has been disclosed to the public and may be used.

Recommendations To fix this issue, it is recommended to apply a patch, specifically the one identified as f6c6047e49f1517778f5565681fb64750b14bf60. As a temporary workaround, consider disabling the initialize typed array from array buffer function until the patch is applied.

Exploit

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2021-4327

Affected Products

Serenityos

References · 8

• 🔥 https://devcraft.io/2021/02/11/serenityos-writing-a-full-chain-exploit.html · Exploit
• https://github.com/SerenityOS/serenity/commit/f6c6047e49f1517778f5565681fb64750b14bf60 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-4327 · Security Note
• https://osv.dev/vulnerability/CVE-2021-4327 · Vendor Advisory
• https://vuldb.com/?ctiid.222074 · Note
• https://t.me/cibsecurity/59218 · Telegram Post
• https://vuldb.com/?id.222074 · Note
• https://t.me/cvenotify/60221 · Telegram Post