CVE-2023-52989

MEDIUM EPSS 15.0%
Published Mar 27, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Mar 27, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: firewire: fix memory leak for payload of request subaction to IEC 61883-1 FCP region This patch is fix for Linux kernel v2.6.33 or later. For request subaction to IEC 61883-1 FCP region, Linux FireWire subsystem have had an issue of use-after-free. The subsystem allows multiple user space listeners to the region, while data of the payload was likely released before the listeners execute read(2) to access to it for copying to user space. The issue was fixed by a commit 281e20323ab7 ("firewire: core: fix use-after-free regression in FCP handler"). The object of payload is duplicated in kernel space for each listener. When the listener executes ioctl(2) with FW_CDEV_IOC_SEND_RESPONSE request, the object is going to be released. However, it causes memory leak since the commit relies on call of release_request() in drivers/firewire/core-cdev.c. Against the expectation, the function is never called due to the design of release_client_resource(). The function delegates release task to caller when called with non-NULL fourth argument. The implementation of ioctl_send_response() is the case. It should release the object explicitly. This commit fixes the bug.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
15.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥2.6.33  –  <4.14.306
linuxlinux_kernel*≥4.15  –  <4.19.273
linuxlinux_kernel*≥4.20  –  <5.4.232
linuxlinux_kernel*≥5.5  –  <5.10.168
linuxlinux_kernel*≥5.11  –  <5.15.93
linuxlinux_kernel*≥5.16  –  <6.1.11
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/356ff89acdbe6a66019154bc7eb2d300f5b15103
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/531390a243ef47448f8bad01c186c2787666bf4d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/53785fd9b315583cf029e39f72b73d23704a2253
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f4543c9382ae2d5062f6aa4fecae0c9258d0b0e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2cd3947d116bb9ba7ff097b5fc747a8956764db
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c8bdc88216f09cb7387fedbdf613524367328616
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d5a2dcee53fa6e6e2822f93cb3f1b0cd23163bee
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/356ff89acdbe6a66019154bc7eb2d300f5b15103
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/531390a243ef47448f8bad01c186c2787666bf4d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/53785fd9b315583cf029e39f72b73d23704a2253
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f4543c9382ae2d5062f6aa4fecae0c9258d0b0e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2cd3947d116bb9ba7ff097b5fc747a8956764db
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c8bdc88216f09cb7387fedbdf613524367328616
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d5a2dcee53fa6e6e2822f93cb3f1b0cd23163bee
    Patch