CVE-2023-4458CWE-125

CVE-2023-4458

Medium · published November 14, 2024

CVSS v3.1
4.0
EPSS
1%
Percentile
57.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00845 · 57.6th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2024-11-14T17:15Z
Affected products (4)
ProductVersionsFixed in
linux/linux_kernel< 5.15.1315.15.131
linux/linux_kernel≥ 5.16, < 6.1.526.1.52
linux/linux_kernel≥ 6.2, < 6.4.156.4.15
linux/linux_kernel≥ 6.5, < 6.5.26.5.2
References (3)
EPSS history
Timeline
  • 14 NOV 12:09Z
    Kernel: ksmbd: smb2_open out-of-bounds read information disclosure vulnerability
    cvelistv5