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Vulnerabilities

Vulnerability · CVE-2023-34967

A Type Confusion vulnerability was found in Samba's mdssvc RPC service for Spotlight.

Published Jul 20, 2023 · catalog updated Nov 6, 2026 · A Type Confusion vulnerability

Last checked Nov 9, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2023-34967 is not in CISA KEV. FIRST estimates a 61.20% chance of exploitation in the next 30 days. Check whether you run A Type Confusion vulnerability.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A Type Confusion vulnerability).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
61.20%
Remediation
Version ranges on file
Affected products
cpe debian/debian linux · cpe fedoraproject/fedora · cpe redhat/enterprise linux · cpe samba/samba

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe debian/debian linux11.0
  • cpe debian/debian linux12.0
  • cpe fedoraproject/fedora37
  • cpe redhat/enterprise linux8.0
  • cpe redhat/enterprise linux9.0
  • cpe samba/samba< 4.16.11
  • cpe samba/samba< 4.17.10
  • cpe samba/samba< 4.18.5

How to fix CVE-2023-34967

  • Upgrade

    CVE-2023-34967 lists a fix boundary at 4.16.11. Compare the installed build with that boundary before you change production.

  • Version check

    Affected < 4.16.11

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-34967 is not in CISA KEV. FIRST estimates a 61.20% chance of exploitation in the next 30 days. Check whether you run A Type Confusion vulnerability.

Which versions are affected?

Compare what you have installed with debian/debian linux 11.0; debian/debian linux 12.0; redhat/enterprise linux 8.0; redhat/enterprise linux 9.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-843: Access of Resource Using Incompatible Type (Type Confusion). EPSS 61.20%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 20, 2023 · NIST NVD

    Detected

    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 o

  2. Jun 17, 2026 · NIST NVD

    Updated

    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 o

  3. Nov 6, 2026 · NIST NVD

    Updated

    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 o

Sources

  • CVE.orgVulnerability recordCVE-2023-34967

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2023-34967

    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 th

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 9, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 7, 2026
  • NIST NVDNov 7, 2026