CVE-2023-42670
Assigner: redhat
Published: 2023-11-03T07:58:04.881Z
State: PUBLISHED
title: Ad dc busy rpc multiple listener dos
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: 6.5
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
version: 3.1
format: CVSS
descriptions: value: A flaw was found in Samba. It is susceptible to a vulnerability where multiple incompatible RPC listeners can be initiated, causing disruptions in the AD DC service. When Samba's RPC server experiences a high load or unresponsiveness, servers intended for non-AD DC purposes (for example, NT4-emulation "classic DCs") can erroneously start and compete for the same unix domain sockets. This issue leads to partial query responses from the AD DC, causing issues such as "The procedure number is out of range" when using tools like Active Directory Users. This flaw allows an attacker to disrupt AD DC services.
affected: product: samba
vendor: n/a
versions: version: 4.19.1
status: unaffected
version: 4.18.8
status: unaffected
version: 4.17.12
status: unaffected
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 Enterprise Linux 8
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: samba
defaultStatus: unaffected
cpes: cpe:/o:redhat:enterprise_linux:8
vendor: Red Hat
product: Red Hat Enterprise Linux 9
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: samba
defaultStatus: unaffected
cpes: cpe:/o:redhat:enterprise_linux:9
vendor: Red Hat
product: Red Hat Storage 3
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: samba
defaultStatus: unaffected
cpes: cpe:/a:redhat:storage:3
product: Fedora
vendor: Fedora
collectionURL: https://packages.fedoraproject.org/
packageName: samba
defaultStatus: affected
datePublic: 2023-10-10T00:00:00+00:00
problemTypes: descriptions: cweId: CWE-400
description: Uncontrolled Resource Consumption
type: CWE
x_redhatCweChain: CWE-400: Uncontrolled Resource Consumption
timeline: time: 2023-10-03T00:00:00+00:00
value: Reported to Red Hat.
time: 2023-10-10T00:00:00+00:00
value: Made public.