CVE-2023-34966 (GCVE-0-2023-34966)
Vulnerability from cvelistv5 – Published: 2023-07-20 14:56 – Updated: 2025-11-20 17:28
VLAI
Title
Samba: infinite loop in mdssvc rpc service for spotlight
Summary
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.
Severity
7.5 (High)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2023:6667 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2023:7139 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:0423 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:0580 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:4101 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2023-34966 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2222793 | issue-trackingx_refsource_REDHAT |
| https://www.samba.org/samba/security/CVE-2023-34966 |
Impacted products
12 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:4.18.6-1.el8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::crb cpe:/a:redhat:enterprise_linux:8::appstream cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:4.18.6-1.el8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::crb cpe:/a:redhat:enterprise_linux:8::appstream cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support |
Unaffected:
0:4.15.5-15.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_eus:8.6::baseos cpe:/a:redhat:rhel_eus:8.6::appstream cpe:/o:redhat:rhev_hypervisor:4.4::el8 cpe:/a:redhat:rhel_eus:8.6::crb |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support |
Unaffected:
0:4.17.5-5.el8_8 , < *
(rpm)
cpe:/a:redhat:rhel_eus:8.8::appstream cpe:/o:redhat:rhel_eus:8.8::baseos cpe:/a:redhat:rhel_eus:8.8::crb |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:4.18.6-100.el9 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::resilientstorage |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:4.18.6-100.el9 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::resilientstorage |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support |
Unaffected:
0:4.17.5-105.el9_2 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.2::crb cpe:/a:redhat:rhel_eus:9.2::resilientstorage cpe:/o:redhat:rhel_eus:9.2::baseos cpe:/a:redhat:rhel_eus:9.2::appstream |
|
| Red Hat | Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 |
Unaffected:
0:4.15.5-15.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_eus:8.6::baseos cpe:/a:redhat:rhel_eus:8.6::appstream cpe:/o:redhat:rhev_hypervisor:4.4::el8 cpe:/a:redhat:rhel_eus:8.6::crb |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Storage 3 |
cpe:/a:redhat:storage:3 |
Date Public
2023-07-19 00:00
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"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
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},
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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