CVE-2021-4327 — MEDIUM (5.5)

Q: How severe is CVE-2021-4327?

CVE-2021-4327 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-4327?

Check the references section above for vendor advisories and patch information. Affected products include: Serenityos Serenityos.

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.

CVSS Score

5.5

MEDIUM

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Serenityos	Serenityos	< 2021-01-27

Related Weaknesses (CWE)

CWE-190

References

https://devcraft.io/2021/02/11/serenityos-writing-a-full-chain-exploit.htmlExploitThird Party Advisory
https://github.com/SerenityOS/serenity/commit/f6c6047e49f1517778f5565681fb64750bPatch
https://vuldb.com/?ctiid.222074Permissions RequiredThird Party Advisory
https://vuldb.com/?id.222074Permissions RequiredThird Party Advisory
https://devcraft.io/2021/02/11/serenityos-writing-a-full-chain-exploit.htmlExploitThird Party Advisory
https://github.com/SerenityOS/serenity/commit/f6c6047e49f1517778f5565681fb64750bPatch
https://vuldb.com/?ctiid.222074Permissions RequiredThird Party Advisory
https://vuldb.com/?id.222074Permissions RequiredThird Party Advisory

FAQ

What is CVE-2021-4327?

CVE-2021-4327 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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/...

How severe is CVE-2021-4327?

CVE-2021-4327 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-4327?

Check the references section above for vendor advisories and patch information. Affected products include: Serenityos Serenityos.