Vulnerability · Published Mar 29, 2023 · Assigned by zdi
CVE-2022-42432
Medium 5.1
In plain English
A medium-severity security flaw in Kernel from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
This vulnerability allows local attackers to disclose sensitive information on affected installations of the Linux Kernel 6.0-rc2. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the nft_osf_eval function. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel. Was ZDI-CAN-18540.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 6.0.2-1 | DEBIAN-CVE-2022-42432 |
| Debian:13 | linux | 6.0.2-1 | DEBIAN-CVE-2022-42432 |
| Debian:14 | linux | 6.0.2-1 | DEBIAN-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux | 5.15.0-57.63 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1027.31 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1030.37 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1030.37.1 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1026.33 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1024.29 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1012.16 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1022.25 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1023.28 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1025.30 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-57.63 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1015.15 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1026.32 | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1022.24 | UBUNTU-CVE-2022-42432 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2022-42432 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2022-42432 |
Affected products (as reported)
Weakness: CWE-457 · Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L