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CVE-2023-34966 Detail

Description

An infinite loop vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function sl_unpack_loop() did not validate a field in the network packet that contains the count of elements in an array-like structure. By passing 0 as the count value, the attacked function will run in an endless loop consuming 100% CPU. This flaw allows an attacker to issue a malformed RPC request, triggering an infinite loop, resulting in a denial of service condition.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2023:6667 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2023:7139 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2024:0423
https://access.redhat.com/errata/RHSA-2024:0580
https://access.redhat.com/errata/RHSA-2024:4101
https://access.redhat.com/security/cve/CVE-2023-34966 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2222793 Issue Tracking  Third Party Advisory 
https://www.samba.org/samba/security/CVE-2023-34966 Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop') cwe source acceptance level NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

15 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-34966
NVD Published Date:
07/20/2023
NVD Last Modified:
09/16/2024
Source:
Red Hat, Inc.