CVE-2023-39179 — HIGH (7.5)

Vulnerability Description

A flaw was found within the handling of SMB2 read requests 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:L

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Linux	Linux Kernel	-

Related Weaknesses (CWE)

CWE-125

References

https://access.redhat.com/security/cve/CVE-2023-39179Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2326529Issue TrackingThird Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-24-586/Not Applicable

FAQ

What is CVE-2023-39179?

CVE-2023-39179 is a vulnerability with a CVSS score of 7.5 (HIGH). A flaw was found within the handling of SMB2 read requests 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 e...

How severe is CVE-2023-39179?

CVE-2023-39179 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-39179?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.