CVE-2023-2236

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-2236
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4 Exploit Mailing List Patch
https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4 Exploit Patch
https://security.netapp.com/advisory/ntap-20230601-0010/ Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4 Exploit Mailing List Patch
https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4 Exploit Patch
https://security.netapp.com/advisory/ntap-20230601-0010/ Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:netapp:hci_baseboard_management_controller:h300s:*:*:*:*:*:*:*
cpe:2.3:a:netapp:hci_baseboard_management_controller:h410c:*:*:*:*:*:*:*
cpe:2.3:a:netapp:hci_baseboard_management_controller:h410s:*:*:*:*:*:*:*
cpe:2.3:a:netapp:hci_baseboard_management_controller:h500s:*:*:*:*:*:*:*
cpe:2.3:a:netapp:hci_baseboard_management_controller:h700s:*:*:*:*:*:*:*
History

13 Feb 2025, 17:16

Type Values Removed Values Added
Summary (en) A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4. (en) A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.
Information

Published : 2023-05-01 13:15

Updated : 2025-02-13 17:16

NVD link : CVE-2023-2236

Mitre link : CVE-2023-2236

CVE.ORG link : CVE-2023-2236

JSON object : View

Products Affected

linux

  • linux_kernel

netapp

  • hci_baseboard_management_controller
CWE
CWE-416

Use After Free