PT-2024-14591 · Linux+2 · Linux Kernel+2

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CVE-2023-52479

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Published

2023-10-04

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Updated

2026-08-15

CVSS v3.1

8.8

High

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A Use-After-Free (UAF) issue exists in the ksmbd component of the Linux kernel within the smb20 oplock break ack() function. This occurs because the reference to opinfo is not dropped after use. Exploitation of this flaw could allow an attacker to cause a denial of service or elevate privileges.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Use After Free

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Weakness Enumeration

Related Identifiers

BDU:2025-07508
CVE-2023-52479
OESA-2024-1394
OESA-2024-1395
OESA-2024-1396
OESA-2024-1397

Affected Products

Astra Linux
Linux Kernel
Red Os