Linux Kernel Parsing Flaw Leaves Sensitive Data Vulnerable to Attack
CVE-2023-4458

7.5HIGH

Key Information:

Vendor

Linux
Status
Linux
Vendor
CVE Published:
14 November 2024

What is CVE-2023-4458?

A vulnerability exists in the parsing of extended attributes within the Linux kernel ksmbd module. This issue arises from the inadequate validation of user-supplied data, which can enable attackers to read beyond the end of an allocated buffer. Systems running Linux with the ksmbd service enabled are at risk, potentially allowing for the exposure of sensitive information stored on the affected installations.

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References

https://access.redhat.com/security/cve/CVE-2023-4458
https://bugzilla.redhat.com/show_bug.cgi?id=2325516
https://www.zerodayinitiative.com/advisories/ZDI-24-590/

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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