PT-2023-2064 · Linux+5 · Linux Kernel+5

Savino Dicanosa · Published 2023-03-21 · Updated 2025-03-03 · CVE-2023-1583

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux Kernel (affected versions not specified)

Description A NULL pointer dereference was found in the io file bitmap get function in the io uring/filetable.c file of the Linux Kernel. This issue occurs when fixed files are unregistered and some context information, such as file alloc {start,end} and alloc hint, is not cleared. A subsequent request with auto index selection enabled via IORING FILE INDEX ALLOC can cause a NULL pointer dereference, allowing an unprivileged user to cause a system crash.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2024-4263

ALT-PU-2024-4843

BDU:2023-01793

CVE-2023-1583

OPENSUSE-SU-2023_2646-1

OPENSUSE-SU-2023_2871-1

SUSE-SU-2023:2646-1

SUSE-SU-2023:2809-1

SUSE-SU-2023:2871-1

USN-6033-1

USN-6175-1

USN-6186-1

Affected Products

Alt Linux

Linux Kernel

Linuxmint

Red Os

Suse

Ubuntu

References · 612

• https://ubuntu.com/security/CVE-2023-1032 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-1583 · Security Note
• https://ubuntu.com/security/CVE-2023-1583 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-1583 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-1670 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:2871-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-1583 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-1583 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-28866 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-1079 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-1990 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-1583 · Security Note
• https://ubuntu.com/security/CVE-2023-1998 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-1583 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:2646-1 · Vendor Advisory