CVE-2023-4458

MEDIUM

Linux Kernel < 6.6 - Out-of-bounds Read in ksmbd Extended Attribute Parsing

Title source: llm
STIX 2.1

Description

A flaw was found within the parsing of extended attributes in the kernel ksmbd module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this to disclose sensitive information on affected installations of Linux. Only systems with ksmbd enabled are vulnerable to this CVE.

References (3)

Core 3
Core References
Vendor Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2023-4458
Issue Tracking, Vendor Advisory issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2325516

Scores

CVSS v3 4.0
EPSS 0.0083
EPSS Percentile 53.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (1)
linux/linux_kernel < 6.6
Published Nov 14, 2024
Tracked Since Feb 18, 2026