{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-34966","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2023-06-07T21:11:04.261Z","datePublished":"2023-07-20T14:56:14.644Z","dateUpdated":"2025-11-20T17:28:59.854Z"},"containers":{"cna":{"title":"Samba: infinite loop in mdssvc rpc service for spotlight","metrics":[{"other":{"content":{"value":"Moderate","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"An infinite loop vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function sl_unpack_loop() did not validate a field in the network packet that contains the count of elements in an array-like structure. By passing 0 as the count value, the attacked function will run in an endless loop consuming 100% CPU. This flaw allows an attacker to issue a malformed RPC request, triggering an infinite loop, resulting in a denial of service condition."}],"affected":[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"samba","defaultStatus":"affected","versions":[{"version":"0:4.18.6-1.el8","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:enterprise_linux:8::crb","cpe:/a:redhat:enterprise_linux:8::appstream","cpe:/o:redhat:enterprise_linux:8::baseos"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 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9","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"samba","defaultStatus":"affected","versions":[{"version":"0:4.18.6-100.el9","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/o:redhat:enterprise_linux:9::baseos","cpe:/a:redhat:enterprise_linux:9::appstream","cpe:/a:redhat:enterprise_linux:9::crb","cpe:/a:redhat:enterprise_linux:9::resilientstorage"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9.2 Extended Update Support","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"samba","defaultStatus":"affected","versions":[{"version":"0:4.17.5-105.el9_2","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:rhel_eus:9.2::crb","cpe:/a:redhat:rhel_eus:9.2::resilientstorage","cpe:/o:redhat:rhel_eus:9.2::baseos","cpe:/a:redhat:rhel_eus:9.2::appstream"]},{"vendor":"Red Hat","product":"Red Hat Virtualization 4 for Red Hat Enterprise Linux 8","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"samba","defaultStatus":"affected","versions":[{"version":"0:4.15.5-15.el8_6","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/o:redhat:rhel_eus:8.6::baseos","cpe:/a:redhat:rhel_eus:8.6::appstream","cpe:/o:redhat:rhev_hypervisor:4.4::el8","cpe:/a:redhat:rhel_eus:8.6::crb"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"samba","defaultStatus":"unknown","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"samba4","defaultStatus":"unknown","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"samba","defaultStatus":"unknown","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Storage 3","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"samba","defaultStatus":"unknown","cpes":["cpe:/a:redhat:storage:3"]}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2023:6667","name":"RHSA-2023:6667","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2023:7139","name":"RHSA-2023:7139","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:0423","name":"RHSA-2024:0423","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:0580","name":"RHSA-2024:0580","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:4101","name":"RHSA-2024:4101","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2023-34966","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2222793","name":"RHBZ#2222793","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://www.samba.org/samba/security/CVE-2023-34966"}],"datePublic":"2023-07-19T00:00:00.000Z","problemTypes":[{"descriptions":[{"cweId":"CWE-835","description":"Loop with Unreachable Exit Condition ('Infinite Loop')","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')","workarounds":[{"lang":"en","value":"As a possible workaround, disable Spotlight by removing all configuration stanzas (\"spotlight=yes|true\") that enable Spotlight ."}],"timeline":[{"lang":"en","time":"2023-07-13T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2023-07-19T00:00:00.000Z","value":"Made public."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2025-11-20T17:28:59.854Z"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T16:17:04.256Z"},"title":"CVE Program 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