// For flags

CVE-2023-45235

Buffer Overflow in EDK II Network Package

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

EDK2's Network Package is susceptible to a buffer overflow vulnerability when





handling Server ID option



from a DHCPv6 proxy Advertise message. This
vulnerability can be exploited by an attacker to gain unauthorized
access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

EDK2's Network Package es susceptible a una vulnerabilidad de desbordamiento de búfer cuando maneja la opción de ID del servidor desde un mensaje de publicidad del proxy DHCPv6. Un atacante puede aprovechar esta vulnerabilidad para obtener acceso no autorizado y potencialmente provocar una pérdida de confidencialidad, integridad y/o disponibilidad.

A security flaw involving buffer overflow was identified in EDK2, the open-source reference implementation of the UEFI specification. This vulnerability enables an unauthorized attacker within the vicinity network to transmit a specifically crafted DHCPv6 proxy Advertise message, resulting in the disclosure of information and potential compromise of system availability.

*Credits: Quarkslab Vulnerability Reports Team, Doug Flick
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-10-05 CVE Reserved
  • 2024-01-16 CVE Published
  • 2024-01-24 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
  • CAPEC-540: Overread Buffers
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Tianocore
Search vendor "Tianocore"
Edk2
Search vendor "Tianocore" for product "Edk2"
<= 202311
Search vendor "Tianocore" for product "Edk2" and version " <= 202311"
-
Affected