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CVE-2023-52837 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: nbd: fix uaf in nbd_open Commit 4af5f2e03013 ("nbd: use blk_mq_alloc_disk and blk_cleanup_disk") cleans up disk by blk_cleanup_disk() and it won't set disk->private_data as NULL as before. UAF may be triggered in nbd_open() if someone tries to open nbd device right after nbd_put() since nbd has been free in nbd_dev_remove(). Fix this by implementing ->free_disk and free private data in it.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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Hyperlink Resource
https://git.kernel.org/stable/c/327462725b0f759f093788dfbcb2f1fd132f956b
https://git.kernel.org/stable/c/4e9b3ec84dc97909876641dad14e0a2300d6c2a3
https://git.kernel.org/stable/c/56bd7901b5e9dbc9112036ea615ebcba1565fafe
https://git.kernel.org/stable/c/879947f4180bc6e83af64eb0515e0cf57fce15db

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-52837
NVD Published Date:
05/21/2024
NVD Last Modified:
05/21/2024
Source:
kernel.org