Missing initialization of resource in Linux kernel - CVE-2022-24448

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Main Vulnerability Database Vulnerabilities #VU61211

Missing initialization of resource in Linux kernel - CVE-2022-24448

Published: March 9, 2022


Vulnerability identifier: #VU61211
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-24448
CWE-ID: CWE-909
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to missing initialization of resource within the fs/nfs/dir.c in the Linux kernel. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file descriptor.


How to mitigate CVE-2022-24448

Install updates from vendor's website.

Sources