7.5
HIGH
CVE-2023-34966
Samba Spotlight Infinite Loop DoS
Description

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.

INFO

Published Date :

July 20, 2023, 3:15 p.m.

Last Modified :

Nov. 21, 2024, 8:07 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-34966 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux
1 Fedoraproject fedora
1 Debian debian_linux
1 Samba samba
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-34966.

URL Resource
https://access.redhat.com/errata/RHSA-2023:6667 Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7139 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0423
https://access.redhat.com/errata/RHSA-2024:0580
https://access.redhat.com/errata/RHSA-2024:4101
https://access.redhat.com/security/cve/CVE-2023-34966 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2222793 Issue Tracking Third Party Advisory
https://www.samba.org/samba/security/CVE-2023-34966 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:6667 Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7139 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0423
https://access.redhat.com/errata/RHSA-2024:0580
https://access.redhat.com/errata/RHSA-2024:4101
https://access.redhat.com/security/cve/CVE-2023-34966 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2222793 Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/
https://lists.fedoraproject.org/archives/list/[email protected]/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/
https://security.netapp.com/advisory/ntap-20230731-0010/
https://www.debian.org/security/2023/dsa-5477
https://www.samba.org/samba/security/CVE-2023-34966 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-34966 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-34966 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2023:6667
    Added Reference https://access.redhat.com/errata/RHSA-2023:7139
    Added Reference https://access.redhat.com/errata/RHSA-2024:0423
    Added Reference https://access.redhat.com/errata/RHSA-2024:0580
    Added Reference https://access.redhat.com/errata/RHSA-2024:4101
    Added Reference https://access.redhat.com/security/cve/CVE-2023-34966
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2222793
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/
    Added Reference https://security.netapp.com/advisory/ntap-20230731-0010/
    Added Reference https://www.debian.org/security/2023/dsa-5477
    Added Reference https://www.samba.org/samba/security/CVE-2023-34966
  • CVE Modified by [email protected]

    Sep. 16, 2024

    Action Type Old Value New Value
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/
    Removed Reference Red Hat, Inc. https://security.netapp.com/advisory/ntap-20230731-0010/
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/
    Removed Reference Red Hat, Inc. https://www.debian.org/security/2023/dsa-5477
  • CVE Modified by [email protected]

    Jun. 25, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:4101 [No types assigned]
  • CVE Modified by [email protected]

    May. 23, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Jan. 30, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0580 [No types assigned]
  • CVE Modified by [email protected]

    Jan. 25, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0423 [No types assigned]
  • Modified Analysis by [email protected]

    Dec. 27, 2023

    Action Type Old Value New Value
    Changed Reference Type https://access.redhat.com/errata/RHSA-2023:6667 No Types Assigned https://access.redhat.com/errata/RHSA-2023:6667 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2023:7139 No Types Assigned https://access.redhat.com/errata/RHSA-2023:7139 Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/ Mailing List
    Changed Reference Type https://security.netapp.com/advisory/ntap-20230731-0010/ No Types Assigned https://security.netapp.com/advisory/ntap-20230731-0010/ Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2023/dsa-5477 No Types Assigned https://www.debian.org/security/2023/dsa-5477 Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 14, 2023

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:7139 [No types assigned]
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:6667 [No types assigned]
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added CWE Red Hat, Inc. CWE-835
  • CVE Modified by [email protected]

    Aug. 15, 2023

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2023/dsa-5477 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 05, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 31, 2023

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20230731-0010/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 31, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-34966 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-34966 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2222793 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2222793 Issue Tracking, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/ Mailing List
    Changed Reference Type https://www.samba.org/samba/security/CVE-2023-34966 No Types Assigned https://www.samba.org/samba/security/CVE-2023-34966 Vendor Advisory
    Added CWE NIST CWE-835
    Added CPE Configuration OR *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions up to (excluding) 4.16.11 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.17.0 up to (excluding) 4.17.10 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.18.0 up to (excluding) 4.18.5
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 22, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-34966 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-34966 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

11.68 }} -1.22%

score

0.95257

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability