Vulnerability Details : CVE-2023-42670
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.
Products affected by CVE-2023-42670
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-42670
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 49 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-42670
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST | |
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
Red Hat, Inc. |
CWE ids for CVE-2023-42670
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: secalert@redhat.com (Secondary)
References for CVE-2023-42670
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https://access.redhat.com/security/cve/CVE-2023-42670
CVE-2023-42670- Red Hat Customer PortalThird Party Advisory
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https://security.netapp.com/advisory/ntap-20231124-0002/
October 2023 Samba Vulnerabilities in NetApp Products | NetApp Product Security
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https://bugzilla.redhat.com/show_bug.cgi?id=2241885
2241885 – (CVE-2023-42670) CVE-2023-42670 samba: AD DC Busy RPC multiple listener DoSIssue Tracking
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZUMVALLFFDFC53JZMUWA6HPD7HUGAP5I/
[SECURITY] Fedora 39 Update: samba-4.19.2-1.fc39 - package-announce - Fedora Mailing-ListsMailing List
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https://www.samba.org/samba/security/CVE-2023-42670.html
Samba - Security Announcement ArchiveVendor Advisory
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https://bugzilla.samba.org/show_bug.cgi?id=15473
15473 – (CVE-2023-42670) [SECURITY] CVE-2023-42670 The procedure number is out of range when starting Active Directory Users and ComputersIssue Tracking
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