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CVE-2023-1583

CVSS v3.1 5.5 (Medium)
55% Progress
EPSS 0.04 % (10th)
0.04% Progress
Affected Products 1
Advisories 6
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-476
NULL Pointer Dereference
CVE Status
PUBLISHED
CNA
Red Hat, Inc.
Published Date
2023-03-24 22:15:07
(18 months ago)
Updated Date
2023-08-02 17:08:56
(13 months ago)

Affected Products

Linux

Configuration #1

    CPE23 From Up To
  Linux Kernel from 5.19 version and prior 6.1.22 version cpe:2.3:o:linux:linux_kernel >= 5.19 < 6.1.22
  Linux Kernel from 6.2.0 version and prior 6.2.9 version cpe:2.3:o:linux:linux_kernel >= 6.2.0 < 6.2.9