Vulnerability · Published Jan 16, 2024 · Assigned by TianoCore
CVE-2023-45237Use of a Weak PseudoRandom Number Generator in EDK II Network Package
Medium 5.3
In plain English
A medium-severity security flaw 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 1.0% (higher than 63% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)1.0%top 37.2% 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 predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | edk2-aarch64 | 20220126gitbb1bba3d77-13.el8_10.2 | ALSA-2024:5297 |
| AlmaLinux:9 | edk2-aarch64 | 20231122-6.el9_4.2 | ALSA-2024:4749 |
| AlmaLinux:8 | edk2-ovmf | 20220126gitbb1bba3d77-13.el8_10.2 | ALSA-2024:5297 |
| AlmaLinux:9 | edk2-ovmf | 20231122-6.el9_4.2 | ALSA-2024:4749 |
| AlmaLinux:9 | edk2-tools | 20231122-6.el9_4.2 | ALSA-2024:4749 |
| AlmaLinux:9 | edk2-tools-doc | 20231122-6.el9_4.2 | ALSA-2024:4749 |
| Debian:12 | edk2 | no fix listed | DEBIAN-CVE-2023-45237 |
| Debian:13 | edk2 | 2024.05-1 | DEBIAN-CVE-2023-45237 |
| Debian:14 | edk2 | 2024.05-1 | DEBIAN-CVE-2023-45237 |
| Rocky Linux:8 | edk2 | 0:20220126gitbb1bba3d77-13.el8_10.2 | RLSA-2024:5297 |
| Ubuntu:22.04:LTS | edk2 | 2022.02-3ubuntu0.22.04.4 | USN-7894-1 |
| Ubuntu:22.04:LTS | edk2 | no fix listed | UBUNTU-CVE-2023-45237 |
| Ubuntu:24.04:LTS | edk2 | no fix listed | UBUNTU-CVE-2023-45237 |
| Ubuntu:24.04:LTS | edk2 | 2024.02-2ubuntu0.6 | USN-7894-1 |
Affected products (as reported)
Weakness: CWE-338 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N