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
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-24-590/
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
0.0012
EPSS Percentile
30.2%
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