Vulnerability · Published Jan 16, 2024 · Assigned by TianoCore
CVE-2023-45234Buffer Overflow in EDK II Network Package
High 8.3
In plain English
A high-severity memory corruption in edk2 from TianoCore. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% 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 32.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers option from a DHCPv6 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
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | edk2-aarch64 | 20220126gitbb1bba3d77-6.el8_9.6.alma | ALSA-2024:1063 |
| AlmaLinux:9 | edk2-aarch64 | 20230524-4.el9_3.2.alma | ALSA-2024:1075 |
| AlmaLinux:8 | edk2-ovmf | 20220126gitbb1bba3d77-6.el8_9.6.alma | ALSA-2024:1063 |
| AlmaLinux:9 | edk2-ovmf | 20230524-4.el9_3.2.alma | ALSA-2024:1075 |
| AlmaLinux:9 | edk2-tools | 20230524-4.el9_3.2.alma | ALSA-2024:1075 |
| AlmaLinux:9 | edk2-tools-doc | 20230524-4.el9_3.2.alma | ALSA-2024:1075 |
| Debian:12 | edk2 | 2022.11-6+deb12u1 | DEBIAN-CVE-2023-45234 |
| Debian:13 | edk2 | 2023.11-6 | DEBIAN-CVE-2023-45234 |
| Debian:14 | edk2 | 2023.11-6 | DEBIAN-CVE-2023-45234 |
| Rocky Linux:8 | edk2 | 0:20220126gitbb1bba3d77-6.el8_9.6 | RLSA-2024:1063 |
| Ubuntu:22.04:LTS | edk2 | 2022.02-3ubuntu0.22.04.2 | USN-6638-1 |
| Ubuntu:22.04:LTS | edk2 | 2022.02-3ubuntu0.22.04.2 | UBUNTU-CVE-2023-45234 |
Affected products (as reported)
Weakness: CWE-119 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
References
- https://github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6p-gj7h vendor-advisory
- http://www.openwall.com/lists/oss-security/2024/01/16/2
- http://packetstormsecurity.com/files/176574/PixieFail-Proof-Of-Concepts.html
- https://security.netapp.com/advisory/ntap-20240307-0011/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SJ42V7O7F4OU6R7QSQQECLB6LDHKZIMQ/
- https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html
- https://www.kb.cert.org/vuls/id/132380