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CERTFR-2026-AVI-0939
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans Samba. Certaines d'entre elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à la confidentialité des données et un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
| Title | Publication Time | Tags | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Samba versions 4.23.x ant\u00e9rieures \u00e0 4.23.9",
"product": {
"name": "Samba",
"vendor": {
"name": "Samba",
"scada": false
}
}
},
{
"description": "Samba versions ant\u00e9rieures \u00e0 4.22.10",
"product": {
"name": "Samba",
"vendor": {
"name": "Samba",
"scada": false
}
}
},
{
"description": "Samba versions 4.24.x ant\u00e9rieures \u00e0 4.24.4",
"product": {
"name": "Samba",
"vendor": {
"name": "Samba",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-58222",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-58222"
},
{
"name": "CVE-2026-58221",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-58221"
},
{
"name": "CVE-2026-58224",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-58224"
},
{
"name": "CVE-2026-58218",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-58218"
},
{
"name": "CVE-2026-58216",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-58216"
},
{
"name": "CVE-2025-58218",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-58218"
},
{
"name": "CVE-2026-6949",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6949"
}
],
"initial_release_date": "2026-07-28T00:00:00",
"last_revision_date": "2026-07-28T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0939",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-07-28T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Samba. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Samba",
"vendor_advisories": [
{
"published_at": "2026-07-28",
"title": "Bulletin de s\u00e9curit\u00e9 Samba CVE-2026-58221",
"url": "https://www.samba.org/samba/security/CVE-2026-58221.html"
},
{
"published_at": "2026-07-28",
"title": "Bulletin de s\u00e9curit\u00e9 Samba CVE-2026-6949",
"url": "https://www.samba.org/samba/security/CVE-2026-6949.html"
},
{
"published_at": "2026-07-28",
"title": "Bulletin de s\u00e9curit\u00e9 Samba CVE-2026-58224",
"url": "https://www.samba.org/samba/security/CVE-2026-58224.html"
},
{
"published_at": "2026-07-28",
"title": "Bulletin de s\u00e9curit\u00e9 Samba CVE-2026-58222",
"url": "https://www.samba.org/samba/security/CVE-2026-58222.html"
},
{
"published_at": "2026-07-28",
"title": "Bulletin de s\u00e9curit\u00e9 Samba CVE-2026-58216",
"url": "https://www.samba.org/samba/security/CVE-2026-58216.html"
},
{
"published_at": "2026-07-28",
"title": "Bulletin de s\u00e9curit\u00e9 Samba CVE-2026-58218",
"url": "https://www.samba.org/samba/security/CVE-2026-58218.html"
}
]
}
CVE-2026-58222 (GCVE-0-2026-58222)
Vulnerability from cvelistv5
Published
2026-07-30 15:11
Modified
2026-07-30 16:12
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Summary
A security flaw combining LDAP filter injection and improper authorization checks was found in Samba Active Directory Domain Controller (AD DC). When processing LDAP Compare requests, Samba fails to properly validate user-supplied attribute names and executes the resulting internal database search in a trusted context, bypassing normal Access Control List (ACL) enforcement. An authenticated low-privilege domain user can exploit these flaws to disclose confidential Active Directory attributes that would normally be inaccessible. The disclosed information may be leveraged to derive sensitive authentication material, potentially leading to privilege escalation and complete domain compromise. For example: In deployments configured with Group Managed Service Accounts (gMSAs), an attacker can extract the "msKds-RootKeyData" attribute and derive gMSA passwords offline, potentially leading to complete domain compromise if privileged gMSAs are present.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
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CVE-2026-58224 (GCVE-0-2026-58224)
Vulnerability from cvelistv5
Published
2026-08-14 14:38
Modified
2026-08-26 15:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-353 - Missing Support for Integrity Check
Summary
A flaw was found in Samba's CTDB, the clustered database service used by Samba. Insufficient integrity validation of received CTDB protocol packets allows malformed packets containing invalid field lengths, improperly terminated strings, or inconsistent packet sizes to be processed without adequate bounds checking. A remote attacker with access to the CTDB private network may trigger a denial of service through process crashes or excessive memory consumption and, in limited cases, disclose adjacent memory contents.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
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CVE-2026-58218 (GCVE-0-2026-58218)
Vulnerability from cvelistv5
Published
2026-07-30 14:01
Modified
2026-07-30 17:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-410 - Insufficient Resource Pool
Summary
A flaw was found in Samba's internal DNS server where unauthenticated TKEY registration requests were added to the TKEY name cache before being rejected. A remote, unauthenticated attacker can exploit this behavior by sending a large number of TKEY requests with arbitrary names, exhausting the cache and evicting legitimate TKEY entries. This can prevent legitimate TSIG authentication for signed DNS queries, resulting in a denial of service.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
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CVE-2025-58218 (GCVE-0-2025-58218)
Vulnerability from cvelistv5
Published
2025-08-27 17:45
Modified
2026-04-28 16:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-502 - Deserialization of Untrusted Data
Summary
Deserialization of Untrusted Data vulnerability in enituretechnology Small Package Quotes – USPS Edition small-package-quotes-usps-edition allows Object Injection.This issue affects Small Package Quotes – USPS Edition: from n/a through <= 1.3.9.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| enituretechnology | Small Package Quotes – USPS Edition |
Version: 0 < |
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CVE-2026-58216 (GCVE-0-2026-58216)
Vulnerability from cvelistv5
Published
2026-07-30 15:40
Modified
2026-07-31 22:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
An out-of-bounds read flaw was found in Samba's Kerberos Key Distribution Center's (KDC) password change (kpasswd) service. When processing malformed ASN.1-encoded Kerberos password change request, Samba server miscalculates the structure size and attempts to read up to six bytes beyond the end of the allocated buffer. While this out-of-bounds read typically results in a harmless decryption failure, if the read hits unmapped memory, it causes the KDC process to crash. An authenticated attacker can send a specially crafted kpasswd request containing malformed ASN.1 data to trigger the out-of-bounds read, which may cause the KDC process to terminate, resulting in a denial of service.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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