CVE-2022-2127 (GCVE-0-2022-2127)
Vulnerability from cvelistv5 – Published: 2023-07-20 14:49 – Updated: 2025-11-20 16:09
VLAI
EPSS
VEX
Title
Samba: out-of-bounds read in winbind auth_crap
Summary
An out-of-bounds read vulnerability was found in Samba due to insufficient length checks in winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic challenges back to the server. These replies have variable lengths, and Winbind fails to check the lan manager response length. When Winbind is used for NTLM authentication, a maliciously crafted request can trigger an out-of-bounds read in Winbind, possibly resulting in a crash.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-12-03 15:21 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
12 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/security/cve/CVE-2022-2127 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2222791 | issue-trackingx_refsource_REDHAT |
| https://www.samba.org/samba/security/CVE-2022-2127.html | |
| https://lists.debian.org/debian-lts-announce/2024… | x_transferred |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://security.netapp.com/advisory/ntap-2023073… | x_transferred |
| https://www.debian.org/security/2023/dsa-5477 | x_transferred |
Impacted products
8 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:4.18.6-1.el8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::crb cpe:/o:redhat:enterprise_linux:8::baseos cpe:/a:redhat:enterprise_linux:8::appstream |
||
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support |
Unaffected:
0:4.15.5-15.el8_6 , < *
(rpm)
cpe:/o:redhat:rhev_hypervisor:4.4::el8 cpe:/a:redhat:rhel_eus:8.6::appstream cpe:/a:redhat:rhel_eus:8.6::crb cpe:/o:redhat:rhel_eus:8.6::baseos |
||
| 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::crb cpe:/o:redhat:rhel_eus:8.8::baseos cpe:/a:redhat:rhel_eus:8.8::appstream |
||
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:4.18.6-100.el9 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::resilientstorage cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb |
||
| Red Hat | Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 |
Unaffected:
0:4.15.5-15.el8_6 , < *
(rpm)
cpe:/o:redhat:rhev_hypervisor:4.4::el8 cpe:/a:redhat:rhel_eus:8.6::appstream cpe:/a:redhat:rhel_eus:8.6::crb cpe:/o:redhat:rhel_eus:8.6::baseos |
||
| 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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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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