Vulnerability Details : CVE-2023-32248
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Vulnerability category: Denial of service
Products affected by CVE-2023-32248
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
- cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*
- cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*
- cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
- cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-32248
0.61%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-32248
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
Red Hat, Inc. |
CWE ids for CVE-2023-32248
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2023-32248
-
https://bugzilla.redhat.com/show_bug.cgi?id=2219818
2219818 – (CVE-2023-32248, ZDI-23-696, ZDI-CAN-20479) CVE-2023-32248 kernel: ksmbd: tree connection NULL pointer dereference denial-of-service vulnerabilityIssue Tracking;Patch;Third Party Advisory
-
https://access.redhat.com/security/cve/CVE-2023-32248
CVE-2023-32248- Red Hat Customer PortalThird Party Advisory
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https://www.zerodayinitiative.com/advisories/ZDI-CAN-20479/
ZDI-23-696 | Zero Day InitiativePatch;Third Party Advisory;VDB Entry
-
https://security.netapp.com/advisory/ntap-20230915-0006/
CVE-2023-32248 Linux Kernel Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
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