TianoCore EDK2 stable202308 DHCPv6 Proxy Advertise Message buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in TianoCore EDK2 stable202308. The affected element is an unknown function of the component DHCPv6 Proxy Advertise Message Handler. Such manipulation leads to buffer overflow. This vulnerability is referenced as CVE-2023-45235. The attack needs to be initiated within the local network. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in TianoCore EDK2 stable202308. Affected by this issue is an unknown code block of the component DHCPv6 Proxy Advertise Message Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published 01/16/2024 as GHSA-hc6x-cw6p-gj7h. The advisory is available at github.com. This vulnerability is handled as CVE-2023-45235 since 10/05/2023. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/04/2026).

The vulnerability scanner Nessus provides a plugin with the ID 209634 (RHEL 8 : edk2 (RHSA-2024:8455)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (209634) and CERT Bund (WID-SEC-2024-0126). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Dell Computer
  • HPE ProLiant
  • HPE Synergy
  • Lenovo Computer
  • Dell BIOS
  • HP Computer
  • Insyde UEFI Firmware
  • RESF Rocky Linux
  • Dell PowerEdge
  • Lenovo BIOS

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.3
CNA Vector (TianoCore.org): 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 209634
Nessus Name: RHEL 8 : edk2 (RHSA-2024:8455)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/05/2023 🔍
01/16/2024 +103 days 🔍
01/16/2024 +0 days 🔍
05/04/2026 +839 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-hc6x-cw6p-gj7h
Status: Confirmed

CVE: CVE-2023-45235 (🔍)
GCVE (CVE): GCVE-0-2023-45235
GCVE (VulDB): GCVE-100-250850
CERT Bund: WID-SEC-2024-0126 - EDK2 NetworkPkg IP stack implementation: Mehrere Schwachstellen

Entryinfo

Created: 01/16/2024 18:14
Updated: 05/04/2026 09:21
Changes: 01/16/2024 18:14 (48), 02/06/2024 09:55 (12), 10/24/2024 23:42 (17), 09/07/2025 03:38 (7), 05/04/2026 09:18 (1), 05/04/2026 09:21 (4)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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