HighFix available
openldap — security advisory
A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this vulnerability is to system availability.
- Products
- openldap
- Affected versions
- Not specified
- Fixed versions
- 2.4.48-r2, 2.4.48-r3, 2.4.50-r1, 2.4.56-r0
- CVEs
- CVE-2020-25710
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:08 UTC · Revision 1
Source evidence
A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this vulnerability is to system availability.
osv:ALPINE-CVE-2020-25710
openldap
Fixed versions: 2.4.48-r2
openldap
Fixed versions: 2.4.48-r3
openldap
Fixed versions: 2.4.50-r1
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.56-r0
openldap
Fixed versions: 2.4.48-r2
Complete source record
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"modified": "2026-10-26T11:17:55.158422376Z",
"provider": "osv",
"upstream": [
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],
"references": [
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]
},
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"evidence": "/upstream"
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],
"security_relevant": true,
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},
"source_id": "core-osv",
"document_id": 450560,
"published_at": "2021-05-28T11:15:07.593+00:00"
}