MediumFix available
samba — security advisory
A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability.
- Products
- samba
- Affected versions
- Not specified
- Fixed versions
- 4.10.17-r0, 4.11.14-r0, 4.12.5-r0
- CVEs
- CVE-2020-10730
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:00 UTC · Revision 1
Source evidence
A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability.
osv:ALPINE-CVE-2020-10730
samba
Fixed versions: 4.10.17-r0
samba
Fixed versions: 4.11.14-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
samba
Fixed versions: 4.12.5-r0
Complete source record
{
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"url": "https://osv.dev/vulnerability/ALPINE-CVE-2020-10730",
"method": "structured",
"payload": {
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"title": "ALPINE-CVE-2020-10730",
"summary": "A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability.",
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],
"modified": "2026-10-26T11:17:55.097169502Z",
"provider": "osv",
"upstream": [
"CVE-2020-10730"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2020-10730"
]
},
"related_cves": [
{
"value": "CVE-2020-10730",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 450338,
"published_at": "2020-07-07T14:15:10.927+00:00"
}