Medium
Security advisory
smbd in Samba before 4.4.10 and 4.5.x before 4.5.6 has a denial of service vulnerability (fd_open_atomic infinite loop with high CPU usage and memory consumption) due to wrongly handling dangling symlinks.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-9461
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:09 UTC · Revision 1
Source evidence
smbd in Samba before 4.4.10 and 4.5.x before 4.5.6 has a denial of service vulnerability (fd_open_atomic infinite loop with high CPU usage and memory consumption) due to wrongly handling dangling symlinks.
osv:CVE-2017-9461
Complete source record
{
"id": "e259b9933a2af16fd07cafe2be3bb9f004652eeeeadef5709fd263d61b024051",
"url": "https://osv.dev/vulnerability/CVE-2017-9461",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-9461",
"summary": "smbd in Samba before 4.4.10 and 4.5.x before 4.5.6 has a denial of service vulnerability (fd_open_atomic infinite loop with high CPU usage and memory consumption) due to wrongly handling dangling symlinks.",
"evidence": "osv:CVE-2017-9461",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2017-9461",
"aliases": [
"CVE-2017-9461"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/samba-team/samba",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "daef395600e23dfda782c556a9e7ef06e395c557"
},
{
"introduced": "916fab083a8cb5c10365da7f3a85d0bbfde4a30e"
},
{
"last_affected": "49c473f6fe978d7f0a5d32df92e212380490a566"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "4.4.9"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:samba:samba:4.5.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.5.0"
},
{
"last_affected": "4.5.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:samba:samba:4.5.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.5.1"
},
{
"last_affected": "4.5.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:samba:samba:4.5.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.5.2"
},
{
"last_affected": "4.5.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:samba:samba:4.5.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.5.3"
},
{
"last_affected": "4.5.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:samba:samba:4.5.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.5.4"
},
{
"last_affected": "4.5.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:samba:samba:4.5.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.5.5"
},
{
"last_affected": "4.5.5"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"4.5.0",
"4.5.1",
"4.5.2",
"4.5.3",
"4.5.4",
"4.5.5",
"samba-4.4.9",
"samba-4.5.5",
"samba-4.5.4",
"samba-4.4.8",
"samba-4.4.7",
"samba-4.5.0",
"samba-4.4.4",
"samba-4.4.3",
"samba-4.4.2",
"samba-4.4.1",
"samba-4.4.0",
"samba-4.4.0rc5",
"samba-4.4.0rc4",
"samba-4.4.0rc3",
"samba-4.4.0rc2",
"samba-4.4.0rc1",
"ldb-1.1.25",
"ldb-1.1.23",
"talloc-2.1.5",
"tdb-1.3.8",
"tevent-0.9.26",
"ldb-1.1.22",
"talloc-2.1.4",
"samba-4.3.0rc1",
"ldb-1.1.21",
"tdb-1.3.7",
"talloc-2.1.3",
"tdb-1.3.6",
"tevent-0.9.25",
"tdb-1.3.5",
"talloc-2.1.2",
"tevent-0.9.24",
"tevent-0.9.23",
"ldb-1.1.20",
"ldb-1.1.19",
"tdb-1.3.4",
"tdb-1.3.3",
"ldb-1.1.18",
"tdb-1.3.2",
"samba-4.2.0rc1",
"tevent-0.9.22",
"tdb-1.3.1",
"tdb-1.3.0",
"talloc-2.1.1",
"ldb-1.1.17",
"tdb-1.2.13",
"tevent-0.9.21",
"tevent-0.9.20",
"talloc-2.1.0",
"tevent-0.9.19",
"ldb-1.1.16",
"tdb-1.2.12",
"tevent-0.9.18",
"ldb-1.1.15",
"ldb-1.1.14",
"tdb-1.2.11",
"talloc-2.0.8",
"samba-4.0.0rc1",
"ldb-1.1.13",
"samba-4.0.0beta8",
"ldb-1.1.12",
"ldb-1.1.11",
"samba-4.0.0beta7",
"tevent-0.9.17",
"samba-4.0.0beta6",
"ldb-1.1.10",
"ldb-1.1.9",
"samba-4.0.0beta5",
"samba-4.0.0beta4",
"ldb-1.1.8",
"samba-4.0.0beta3",
"samba-4.0.0beta2",
"tevent-0.9.16",
"samba-4.0.0beta1",
"samba-4.0.0alpha21",
"samba-4.0.0alpha20",
"ldb-1.1.6",
"samba-4.0.0alpha19",
"ldb-1.1.5",
"tdb-1.2.10",
"samba-4.0.0alpha18",
"tevent-0.9.15",
"ldb-1.1.4",
"ldb-1.1.3",
"talloc-2.0.7",
"samba-4.0.0alpha17",
"tevent-0.9.14",
"ldb-1.1.2",
"tevent-0.9.13",
"tevent-0.9.12",
"ldb-1.1.0",
"tevent-0.9.11",
"tdb-1.2.1",
"samba-4.0.0alpha10",
"samba-4.0.0alpha9",
"tdb-1.2.0",
"tevent-0.9.8",
"talloc-2.0.0",
"samba-4.0.0alpha8",
"talloc-1.3.1",
"tdb-1.1.5",
"samba-4.0.0alpha7",
"samba-4.0.0alpha6"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-9461.json"
}
}
],
"modified": "2026-10-24T10:30:25.217469550Z",
"provider": "osv",
"references": [
"https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=10c3e3923022485c720f322ca4f0aca5d7501310",
"https://access.redhat.com/errata/RHSA-2017:1950",
"https://access.redhat.com/errata/RHSA-2017:2338",
"https://access.redhat.com/errata/RHSA-2017:2778",
"https://lists.debian.org/debian-lts-announce/2019/04/msg00013.html",
"https://bugs.debian.org/864291",
"https://bugzilla.samba.org/show_bug.cgi?id=12572"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_desktop",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_aus",
"extracted_events": [
{
"range": [
{
"introduced": "7.4"
},
{
"last_affected": "7.4"
},
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_eus",
"extracted_events": [
{
"range": [
{
"introduced": "7.4"
},
{
"last_affected": "7.4"
},
{
"introduced": "7.5"
},
{
"last_affected": "7.5"
},
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_tus",
"extracted_events": [
{
"range": [
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_workstation",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2017-9461",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 431311,
"published_at": "2017-06-06T21:29:00.313+00:00"
}