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Vulnerability · Published Jan 16, 2024 · Assigned by TianoCore

CVE-2023-45235Buffer Overflow in EDK II Network Package

High 8.3

In plain English

A high-severity memory corruption in edk2 from TianoCore. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.3High
Exploit odds (30 days)1.2%top 31.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8edk2-aarch6420220126gitbb1bba3d77-13.el8_10ALSA-2024:3017
AlmaLinux:9edk2-aarch6420231122-6.el9ALSA-2024:2264
AlmaLinux:8edk2-ovmf20220126gitbb1bba3d77-13.el8_10ALSA-2024:3017
AlmaLinux:9edk2-ovmf20231122-6.el9ALSA-2024:2264
AlmaLinux:9edk2-tools20231122-6.el9ALSA-2024:2264
AlmaLinux:9edk2-tools-doc20231122-6.el9ALSA-2024:2264
Debian:12edk22022.11-6+deb12u1DEBIAN-CVE-2023-45235
Debian:13edk22023.11-6DEBIAN-CVE-2023-45235
Debian:14edk22023.11-6DEBIAN-CVE-2023-45235
Rocky Linux:8edk20:20220126gitbb1bba3d77-13.el8_10RLSA-2024:3017
Rocky Linux:9edk20:20231122-6.el9RLSA-2024:2264
Ubuntu:22.04:LTSedk22022.02-3ubuntu0.22.04.2USN-6638-1
Ubuntu:22.04:LTSedk22022.02-3ubuntu0.22.04.2UBUNTU-CVE-2023-45235

Affected products (as reported)

VendorProductVersions
TianoCore edk2 edk2-stable202308

Weakness: CWE-119 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H

References