CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
53.8%
A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (…/). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes.
[
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "samba",
"defaultStatus": "affected",
"versions": [
{
"version": "0:4.18.6-2.el8_9",
"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 8",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "samba",
"defaultStatus": "affected",
"versions": [
{
"version": "0:4.18.6-2.el8_9",
"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 8.6 Extended Update Support",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "samba",
"defaultStatus": "affected",
"versions": [
{
"version": "0:4.15.5-13.el8_6",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/o:redhat:rhev_hypervisor:4.4::el8",
"cpe:/a:redhat:rhel_eus:8.6::crb",
"cpe:/o:redhat:rhel_eus:8.6::baseos",
"cpe:/a:redhat:rhel_eus:8.6::appstream"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.8 Extended Update Support",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "samba",
"defaultStatus": "affected",
"versions": [
{
"version": "0:4.17.5-4.el8_8",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:rhel_eus:8.8::crb",
"cpe:/a:redhat:rhel_eus:8.8::appstream",
"cpe:/o:redhat:rhel_eus:8.8::baseos"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "samba",
"defaultStatus": "affected",
"versions": [
{
"version": "0:4.18.6-101.el9_3",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::crb",
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/a:redhat:enterprise_linux:9::resilientstorage",
"cpe:/o:redhat:enterprise_linux:9::baseos"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "samba",
"defaultStatus": "affected",
"versions": [
{
"version": "0:4.18.6-101.el9_3",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::crb",
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/a:redhat:enterprise_linux:9::resilientstorage",
"cpe:/o:redhat:enterprise_linux:9::baseos"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.0 Extended Update Support",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "samba",
"defaultStatus": "affected",
"versions": [
{
"version": "0:4.15.5-111.el9_0",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/o:redhat:rhel_eus:9.0::baseos",
"cpe:/a:redhat:rhel_eus:9.0::resilientstorage",
"cpe:/a:redhat:rhel_eus:9.0::crb",
"cpe:/a:redhat:rhel_eus:9.0::appstream"
]
},
{
"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": "0:4.17.5-104.el9_2",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/o:redhat:rhel_eus:9.2::baseos",
"cpe:/a:redhat:rhel_eus:9.2::resilientstorage",
"cpe:/a:redhat:rhel_eus:9.2::appstream",
"cpe:/a:redhat:rhel_eus:9.2::crb"
]
},
{
"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": "0:4.15.5-13.el8_6",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/o:redhat:rhev_hypervisor:4.4::el8",
"cpe:/a:redhat:rhel_eus:8.6::crb",
"cpe:/o:redhat:rhel_eus:8.6::baseos",
"cpe:/a:redhat:rhel_eus:8.6::appstream"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 6",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "samba",
"defaultStatus": "unaffected",
"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": "unaffected",
"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": "unaffected",
"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": "affected",
"cpes": [
"cpe:/a:redhat:storage:3"
]
}
]
access.redhat.com/errata/RHSA-2023:6209
access.redhat.com/errata/RHSA-2023:6744
access.redhat.com/errata/RHSA-2023:7371
access.redhat.com/errata/RHSA-2023:7408
access.redhat.com/errata/RHSA-2023:7464
access.redhat.com/errata/RHSA-2023:7467
access.redhat.com/security/cve/CVE-2023-3961
bugzilla.redhat.com/show_bug.cgi?id=2241881
bugzilla.samba.org/show_bug.cgi?id=15422
www.samba.org/samba/security/CVE-2023-3961.html
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
53.8%