CVE-2022-42432

Public on 2023-03-29
Modified on 2024-01-12
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.
Severity
Medium severity
Medium
CVSS v3 Base Score
4.1
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 1 kernel Not Affected
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-10-17 ALAS2KERNEL-5.10-2022-021 Fixed
Amazon Linux 2 - Kernel-5.15 Extra kernel 2022-10-17 ALAS2KERNEL-5.15-2022-009 Fixed
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-10-17 ALAS2KERNEL-5.4-2022-037 Fixed
Amazon Linux 2023 kernel Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.1 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
NVD CVSSv3 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N