CVE-2023-1872

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-1872
A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation. The io_file_get_fixed function lacks the presence of ctx->uring_lock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered. We recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8.

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
http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html Third Party Advisory VDB Entry
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=08681391b84da27133deefaaddefd0acfa90c2be Mailing List Product
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=da24142b1ef9fd5d36b76e36bab328a5b27523e8 Mailing List Patch
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html Third Party Advisory
https://security.netapp.com/advisory/ntap-20230601-0002/ Third Party Advisory
http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html Third Party Advisory VDB Entry
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=08681391b84da27133deefaaddefd0acfa90c2be Mailing List Product
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=da24142b1ef9fd5d36b76e36bab328a5b27523e8 Mailing List Patch
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html Third Party Advisory
https://security.netapp.com/advisory/ntap-20230601-0002/ Third Party Advisory
Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
History

13 Feb 2025, 17:16

Type Values Removed Values Added
Summary (en) A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation. The io_file_get_fixed function lacks the presence of ctx->uring_lock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered. We recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8. (en) A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation. The io_file_get_fixed function lacks the presence of ctx->uring_lock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered. We recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8.

21 Nov 2024, 07:40

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 7.0 		v2 : unknown
v3 : 7.8
References () http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html - Third Party Advisory, VDB Entry () http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html - Third Party Advisory, VDB Entry
References () https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=08681391b84da27133deefaaddefd0acfa90c2be - Mailing List, Product () https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=08681391b84da27133deefaaddefd0acfa90c2be - Mailing List, Product
References () https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=da24142b1ef9fd5d36b76e36bab328a5b27523e8 - Mailing List, Patch () https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=da24142b1ef9fd5d36b76e36bab328a5b27523e8 - Mailing List, Patch
References () https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html - Third Party Advisory () https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html - Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20230601-0002/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20230601-0002/ - Third Party Advisory

29 Feb 2024, 20:23

Type Values Removed Values Added
First Time Debian debian Linux
Debian
References () http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html - () http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html - Third Party Advisory, VDB Entry
References () https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html - () https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html - Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20230601-0002/ - () https://security.netapp.com/advisory/ntap-20230601-0002/ - Third Party Advisory
CPE cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Information

Published : 2023-04-12 16:15

Updated : 2025-02-13 17:16

NVD link : CVE-2023-1872

Mitre link : CVE-2023-1872

CVE.ORG link : CVE-2023-1872

JSON object : View

Products Affected

debian

  • debian_linux

linux

  • linux_kernel
CWE
CWE-416

Use After Free