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CVE-2023-34967

Samba: type confusion in mdssvc rpc service for spotlight

CVSS 3.1 Medium 5.3

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

Description

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.

Official description from the CVE record, published by redhat. Copyright © 1999-2026 The MITRE Corporation. See /security/cve/legal for the CVE license. View the record on cve.org

Key data

CVSS 3.1 Medium 5.3

Score published by redhat in the CVE record.

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

  • Attack vector: Network

    The vulnerable component can be reached over a network, possibly from the Internet.

  • Attack complexity: Low

    No special conditions are needed. The attack can be repeated at will.

  • Privileges required: None

    No account or privileges are needed.

  • User interaction: None

    No action from any user is needed.

  • Scope: Unchanged

    The impact stays within the vulnerable component.

  • Confidentiality impact: None

    No effect on the secrecy of data.

  • Integrity impact: None

    No effect on the trustworthiness of data.

  • Availability impact: Low

    Limited effect on availability.

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at first.org/cvss.

EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.
Score
0.61199 (61.2% probability)
Percentile
99.2%
Scores of
Nov 10, 2026
Model
v2026.06.15

Weakness (CWE)

CWE catalog version 5.0.
CWE names: Copyright © 2006-2026, The MITRE Corporation. See /security/cve/legal for the CWE license.
  • CWE-843Access of Resource Using Incompatible Type

Affected products

Products listed in the CVE record, as the CNA published them.

  • Red Hat Enterprise Linux 8

    • unaffected: 0:4.18.6-1.el8 up to before *

  • Red Hat Enterprise Linux 8

    • unaffected: 0:4.18.6-1.el8 up to before *

  • Red Hat Enterprise Linux 8.6 Extended Update Support

    • unaffected: 0:4.15.5-15.el8_6 up to before *

  • Red Hat Enterprise Linux 8.8 Extended Update Support

    • unaffected: 0:4.17.5-5.el8_8 up to before *

  • Red Hat Enterprise Linux 9

    • unaffected: 0:4.18.6-100.el9 up to before *

  • Red Hat Enterprise Linux 9

    • unaffected: 0:4.18.6-100.el9 up to before *

  • Red Hat Virtualization 4 for Red Hat Enterprise Linux 8

    • unaffected: 0:4.15.5-15.el8_6 up to before *

  • Red Hat Enterprise Linux 6

  • Red Hat Enterprise Linux 6

  • Red Hat Enterprise Linux 7

  • Red Hat Storage 3

References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

Timeline

  1. ID reserved
  2. Record published
  3. Record last updated

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:51 UTC. Sources and licenses