CVE-2023-34967
No exploitation reported by the sources we read.
- Published2023-07-20
- Fixed in4.18.5 · 4.17.10 · 4.16.11
- WeaknessCWE-843
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
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.
Timeline
dates in UTC- 2023-07-2015:15CVE publishedNVD
- 2026-10-2319:23EPSS crossed 10 %FIRST EPSS
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-34967?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-34967?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 4.18 | ≥ 4.18.0, < 4.18.5 | 4.18.5 | NVD |
| 4.17 | ≥ 4.17.0, < 4.17.10 | 4.17.10 | NVD |
| 4.16 | < 4.16.11 | 4.16.11 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 11.0 | = 11.0 | no fix published | NVD |
| 12.0 | = 12.0 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 37.x | = 37 | no fix published | NVD |
| 38.x | = 38 | no fix published | NVD |
1 more product in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Samba to 4.18.5 · 4.17.10 · 4.16.11
Advisories and patches
- www.samba.orgVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- CNACVSS 3.15.3read 2026-10-23
- NVDCVSS 3.15.3read 2026-10-23
- CNAweakness (CWE)CWE-843read 2026-10-23
- NVDweakness (CWE)CWE-843read 2026-10-23
- FIRST EPSSEPSS score61.2 %read 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Published
- 2023-07-20
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2023-34967?
Is CVE-2023-34967 actively exploited?
What is the CVSS score for CVE-2023-34967?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.