CVE-2022-2809 HIGH

CVE-2022-2809: Unauthenticated out of bounds heap write in bmcweb

Vendor Openbmc Project
Product OpenBMC
Weakness CWE-229
Published October 27, 2022
Last update May 5, 2025

CVSS base score

8.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in bmcweb of OpenBMC Project allows user to cause denial of service. When fuzzing the multipart_parser code using AFL++ with address sanitizer enabled to find smallest memory corruptions possible. It detected problem in how multipart_parser handles unclosed http headers. If long enough http header is passed in the multipart form without colon there is one byte overwrite on heap. It can be conducted multiple times in a loop to cause DoS.

Key dates

02Disclosure timeline

October 27, 2022 CVE published
May 5, 2025 Record updated