// For flags

CVE-2022-2809

Unauthenticated out of bounds heap write in bmcweb

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Una vulnerabilidad en bmcweb del OpenBMC Project permite al usuario provocar una denegación de servicio. Al difuminar el código multipart_parser usando AFL++ con el sanitizador de direcciones habilitado para encontrar las corrupciones de memoria más pequeñas posibles. Se detectó un problema en cómo multipart_parser maneja los encabezados http no cerrados. Si se pasa un encabezado http lo suficientemente largo en formato de varias partes sin dos puntos, se sobrescribe un byte en la memoria. Se puede realizar varias veces en un bucle para provocar DoS.

*Credits: Finder: Jakub Rozanski, Intel Corporation, Remediation: Krzysztof Grobelny, Intel Corporation
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-08-13 CVE Reserved
  • 2022-10-27 CVE Published
  • 2024-04-29 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-122: Heap-based Buffer Overflow
  • CWE-229: Improper Handling of Values
  • CWE-787: Out-of-bounds Write
CAPEC
References (1)
URL Tag Source
https://github.com/openbmc/bmcweb Product
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Openbmc-project
Search vendor "Openbmc-project"
 Openbmc
Search vendor "Openbmc-project" for product "Openbmc"
 >= 2.10.0 <= 2.13.0
Search vendor "Openbmc-project" for product "Openbmc" and version " >= 2.10.0 <= 2.13.0"
-
Affected