CVE-2023-4458

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

7.5 (HIGH) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS — סבירות ניצול

1% (אחוזון 100) נכון ל-9/10/2026

CWE

CWE-125

מוצרים מושפעים

linux: linux kernel

קישורים

• https://access.redhat.com/security/cve/CVE-2023-4458 Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2325516 Issue TrackingVendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-24-590/ Third Party Advisory