CVE-2023-1583 - OpenCVE

A NULL pointer dereference was found in io_file_bitmap_get in io_uring/filetable.c in the io_uring sub-component in the Linux Kernel. When fixed files are unregistered, some context information (file_alloc_{start,end} and alloc_hint) is not cleared. A subsequent request that has auto index selection enabled via IORING_FILE_INDEX_ALLOC can cause a NULL pointer dereference. An unprivileged user can use the flaw to cause a system crash.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

No data.

References

Link	Providers
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=02a4d923e4400a36d340ea12d8058f69ebf3a383
https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?h=io_uring-6.3&?id=761efd55a0227aca3a69deacdaa112fffd44fe37
https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?h=io_uring-6.3&id=761efd55a0227aca3a69deacdaa112fffd44fe37
https://nvd.nist.gov/vuln/detail/CVE-2023-1583
https://www.cve.org/CVERecord?id=CVE-2023-1583

History

No history.

MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2023-03-24T00:00:00

Updated: 2024-08-02T05:57:23.335Z

Reserved: 2023-03-22T00:00:00

Link: CVE-2023-1583

Vulnrichment

No data.

NVD

Status : Analyzed

Published: 2023-03-24T22:15:07.137

Modified: 2023-08-02T17:08:56.840

Link: CVE-2023-1583

Redhat

Severity : Moderate

Publid Date: 2023-03-21T00:00:00Z

Links: CVE-2023-1583 - Bugzilla

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