Kernel Smbd Module Vulnerability Discloses Sensitive Information
CVE-2023-39176

7.5HIGH

Key Information:

Vendor

Linux
Status
Linux
Vendor
CVE Published:
18 November 2024

What is CVE-2023-39176?

A vulnerability exists in the Linux kernel's ksmbd module, specifically related to the parsing of SMB2 requests with a transform header. This flaw is caused by the inadequate validation of user-supplied data, allowing an attacker to exploit this weakness and read beyond the bounds of an allocated buffer. As a result, sensitive information may be disclosed from systems with the ksmbd functionality enabled, posing a significant security risk.

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References

https://access.redhat.com/security/cve/CVE-2023-39176
https://bugzilla.redhat.com/show_bug.cgi?id=2326503
https://www.zerodayinitiative.com/advisories/ZDI-24-586/

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

JSON
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