Samba up to 4.16.10/4.17.9/4.18.4 mdssvc RPC Request dalloc_value_for_key type confusion

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Samba up to 4.16.10/4.17.9/4.18.4. It has been classified as problematic. Affected by this issue is the function dalloc_value_for_key of the component mdssvc RPC Request Handler. This manipulation causes type confusion. This vulnerability appears as CVE-2023-34967. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Samba up to 4.16.10/4.17.9/4.18.4 (File Transfer Software) and classified as problematic. Affected by this vulnerability is the function dalloc_value_for_key of the component mdssvc RPC Request Handler. The manipulation with an unknown input leads to a type confusion vulnerability. The CWE definition for the vulnerability is CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. As an impact it is known to affect availability.

The weakness was presented 07/20/2023. The advisory is shared at samba.org. This vulnerability is known as CVE-2023-34967 since 06/07/2023. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 276207 (TencentOS Server 3: samba (TSSA-2023:0313)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.16.11, 4.17.10 or 4.18.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (276207). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Type confusion
CWE: CWE-843
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 276207
Nessus Name: TencentOS Server 3: samba (TSSA-2023:0313)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Samba 4.16.11/4.17.10/4.18.5

Timelineinfo

06/07/2023 🔍
07/20/2023 +43 days 🔍
07/20/2023 +0 days 🔍
11/24/2025 +858 days 🔍

Sourcesinfo

Product: samba.org

Advisory: FEDORA-2023-bcd91bfcd3
Status: Confirmed

CVE: CVE-2023-34967 (🔍)
GCVE (CVE): GCVE-0-2023-34967
GCVE (VulDB): GCVE-100-235093

Entryinfo

Created: 07/20/2023 17:12
Updated: 11/24/2025 06:38
Changes: 07/20/2023 17:12 (39), 08/15/2023 14:27 (13), 09/16/2024 17:30 (24), 11/24/2025 06:38 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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