Vulnerability-Lookup

CVE-2023-34967 (GCVE-0-2023-34967)

Vulnerability from cvelistv5 – Published: 2023-07-20 14:57 – Updated: 2025-11-20 17:29

Title

Samba: type confusion in mdssvc rpc service for spotlight

Summary

A Type Confusion vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the mdssvc protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a caller may trigger a crash in talloc_get_size() when talloc detects that the passed-in pointer is not a valid talloc pointer. With an RPC worker process shared among multiple client connections, a malicious client or attacker can trigger a process crash in a shared RPC mdssvc worker process, affecting all other clients this worker serves.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1035 records in the last 180 days details

References

11 references

URL	Tags
https://access.redhat.com/errata/RHSA-2023:6667	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:7139	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0423	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0580	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-34967	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2222794	issue-trackingx_refsource_REDHAT
https://www.samba.org/samba/security/CVE-2023-349…
https://lists.fedoraproject.org/archives/list/pac…	x_transferred
https://lists.fedoraproject.org/archives/list/pac…	x_transferred
https://security.netapp.com/advisory/ntap-2023073…	x_transferred
https://www.debian.org/security/2023/dsa-5477	x_transferred

Impacted products

8 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.6-1.el8 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::crb cpe:/a:redhat:enterprise_linux:8::appstream cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support	Unaffected: 0:4.15.5-15.el8_6 , < * (rpm) cpe:/o:redhat:rhel_eus:8.6::baseos cpe:/o:redhat:rhev_hypervisor:4.4::el8 cpe:/a:redhat:rhel_eus:8.6::crb cpe:/a:redhat:rhel_eus:8.6::appstream
Red Hat	Red Hat Enterprise Linux 8.8 Extended Update Support	Unaffected: 0:4.17.5-5.el8_8 , < * (rpm) cpe:/a:redhat:rhel_eus:8.8::appstream cpe:/o:redhat:rhel_eus:8.8::baseos cpe:/a:redhat:rhel_eus:8.8::crb
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:4.18.6-100.el9 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::resilientstorage cpe:/a:redhat:enterprise_linux:9::appstream cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::crb
Red Hat	Red Hat Virtualization 4 for Red Hat Enterprise Linux 8	Unaffected: 0:4.15.5-15.el8_6 , < * (rpm) cpe:/o:redhat:rhel_eus:8.6::baseos cpe:/o:redhat:rhev_hypervisor:4.4::el8 cpe:/a:redhat:rhel_eus:8.6::crb cpe:/a:redhat:rhel_eus:8.6::appstream
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Storage 3	cpe:/a:redhat:storage:3

Date Public

2023-07-19 00:00

Show details on NVD website

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          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
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        "vulnStatus": "Modified",
        "weaknesses": [
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    "redhat_vex": {
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      "current_release_date": "2025-11-21T14:55:08+00:00",
      "cve": "CVE-2023-34967",
      "id": "CVE-2023-34967",
      "initial_release_date": "2023-07-19T00:00:00+00:00",
      "product_status:fixed": "3400",
      "product_status:known_affected": "94",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "samba: type confusion in mdssvc RPC service for spotlight",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-34967.json",
      "version": "3"
    }
  }
}

RHSA-2024:0580

Vulnerability from csaf_redhat - Published: 2024-01-30 13:27 - Updated: 2026-06-25 11:04

Summary

Red Hat Security Advisory: samba security update

Severity

Moderate

Scope

4 vulnerabilities in this advisory, including CVE-2023-34967.

CVE-2023-34967

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Fixed: 479 products

https://access.redhat.com/errata/RHSA-2024:0580

Open the full advisory

SUSE-SU-2023:2888-1

Vulnerability from csaf_suse - Published: 2023-07-19 16:04 - Updated: 2023-07-19 16:04

Summary

Security update for samba

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2023-34967.

CVE-2023-34967

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Recommended: 135 products

Open the full advisory

SUSE-SU-2023:2929-1

Vulnerability from csaf_suse - Published: 2023-07-21 08:09 - Updated: 2023-07-21 08:09

Summary

Security update for samba

Severity

Important

Scope

6 vulnerabilities in this advisory, including CVE-2023-34967.

CVE-2023-34967

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Recommended: 151 products

Open the full advisory

SUSE-SU-2023:2930-1

Vulnerability from csaf_suse - Published: 2023-07-21 08:10 - Updated: 2023-07-21 08:10

Summary

Security update for samba

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2023-34967.

CVE-2023-34967

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Recommended: 197 products

Open the full advisory

SUSE-SU-2023:3060-1

Vulnerability from csaf_suse - Published: 2023-07-31 11:27 - Updated: 2023-07-31 11:27

Summary

Security update for samba

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2023-34967.

CVE-2023-34967

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Recommended: 361 products

Open the full advisory

SUSE-SU-2023:3066-1

Vulnerability from csaf_suse - Published: 2023-07-31 13:09 - Updated: 2023-07-31 13:09

Summary

Security update for samba

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2023-34967.

CVE-2023-34967

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Recommended: 50 products

Open the full advisory

UBUNTU-CVE-2023-34967 (CVE-2023-34967)

Vulnerability from osv_ubuntu – Published: 2023-07-19 00:00 – Updated: 2026-04-22 07:45 – Source website

Details

Severity

5.3 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

5.3 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2023-34967	REPORT
	https://www.samba.org/samba/security/CVE-2023-349…	REPORT
	https://ubuntu.com/security/notices/USN-6238-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2023-34967	REPORT

JSON

To clipboard

{
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            },
            {
              "fixed": "2:4.15.13+dfsg-0ubuntu1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:4.13.5+dfsg-2ubuntu2",
        "2:4.13.5+dfsg-2ubuntu3",
        "2:4.13.14+dfsg-0ubuntu1",
        "2:4.13.14+dfsg-0ubuntu2",
        "2:4.15.5~dfsg-0ubuntu1",
        "2:4.15.5~dfsg-0ubuntu2",
        "2:4.15.5~dfsg-0ubuntu4",
        "2:4.15.5~dfsg-0ubuntu5",
        "2:4.15.5~dfsg-0ubuntu5.1",
        "2:4.15.9+dfsg-0ubuntu0.2",
        "2:4.15.9+dfsg-0ubuntu0.3",
        "2:4.15.13+dfsg-0ubuntu1",
        "2:4.15.13+dfsg-0ubuntu1.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A Type Confusion vulnerability was found in Samba\u0027s mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the mdssvc protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a caller may trigger a crash in talloc_get_size() when talloc detects that the passed-in pointer is not a valid talloc pointer. With an RPC worker process shared among multiple client connections, a malicious client or attacker can trigger a process crash in a shared RPC mdssvc worker process, affecting all other clients this worker serves.",
  "id": "UBUNTU-CVE-2023-34967",
  "modified": "2026-04-22T07:45:22Z",
  "published": "2023-07-19T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-34967"
    },
    {
      "type": "REPORT",
      "url": "https://www.samba.org/samba/security/CVE-2023-34967.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6238-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-34967"
    }
  ],
  "related": [
    "USN-6238-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-34967"
  ]
}

WID-SEC-W-2023-1842

Vulnerability from csaf_certbund - Published: 2023-07-19 22:00 - Updated: 2025-06-29 22:00

Summary

Samba: Mehrere Schwachstellen

Severity

Mittel

Scope

5 vulnerabilities in this advisory, including CVE-2023-34967.

CVE-2023-34967

Known affected: 21 products

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2023-34967 (GCVE-0-2023-34967)

RHSA-2024:0580

SUSE-SU-2023:2888-1

SUSE-SU-2023:2929-1

SUSE-SU-2023:2930-1

SUSE-SU-2023:3060-1

SUSE-SU-2023:3066-1

UBUNTU-CVE-2023-34967 (CVE-2023-34967)

WID-SEC-W-2023-1842

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