CVE-2020-25710

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.

• CWE-617

• https://bugzilla.redhat.com/show_bug.cgi?id=1899678Issue Tracking, Patch, Third Party Advisory
• https://git.openldap.org/openldap/openldap/-/commit/ab3915154e69920d480205b4bf5ccb2b391a0a1f#a2feb6ed0257c21c6672793ee2f94eaadc10c72cPatch, Vendor Advisory
• https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.debian.org/debian-lts-announce/2020/12/msg00008.htmlMailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210716-0003/Third Party Advisory
• https://www.debian.org/security/2020/dsa-4792Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1899678Issue Tracking, Patch, Third Party Advisory
• https://git.openldap.org/openldap/openldap/-/commit/ab3915154e69920d480205b4bf5ccb2b391a0a1f#a2feb6ed0257c21c6672793ee2f94eaadc10c72cPatch, Vendor Advisory
• https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.debian.org/debian-lts-announce/2020/12/msg00008.htmlMailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210716-0003/Third Party Advisory
• https://www.debian.org/security/2020/dsa-4792Third Party Advisory

Published

May 28, 2021

Last Modified

Jun 17, 2026

Status

Modified

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