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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade openldap | May 28, 2021 | May 28, 2021 |
| Amazon Linux Ami 2 | — | Upgrade openldap-debuginfoUpgrade openldap-serversUpgrade openldap-clientsUpgrade openldap-servers-sqlUpgrade openldap-develUpgrade openldap | Jul 4, 2022 | May 28, 2021 |
| Centos_linux | — | Upgrade openldap-develUpgrade openldapUpgrade openldap-servers-sqlUpgrade openldap-serversUpgrade openldap-debuginfoUpgrade openldap-clients | Feb 23, 2022 | May 28, 2021 |
| Debian | — | Upgrade openldap | Nov 19, 2020 | Nov 19, 2020 |
| Huawei Euleros 2_0_sp2 | — | Upgrade openldap-develUpgrade openldap-serversUpgrade openldap-clientsUpgrade openldap | Sep 16, 2021 | May 28, 2021 |
| Huawei Euleros 2_0_sp3 | — | Upgrade openldap-clientsUpgrade openldap-develUpgrade openldap-serversUpgrade openldap | Oct 26, 2021 | May 28, 2021 |
| Huawei Euleros 2_0_sp5 | — | Upgrade openldap-develUpgrade openldap-serversUpgrade openldap-clientsUpgrade openldap | Sep 7, 2021 | May 28, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade openldap-develUpgrade openldapUpgrade openldap-serversUpgrade openldap-clients | Aug 10, 2021 | May 28, 2021 |
| Huawei Euleros 2_0_sp9 | — | Upgrade openldapUpgrade openldap-serversUpgrade openldap-clients | Aug 10, 2021 | May 28, 2021 |
| Nutanix Ahv | — | Upgrade Nutanix AHV to the latest version | Jun 5, 2026 | Jan 24, 2023 |
| Oracle_linux | — | Upgrade openldap-servers-sqlUpgrade openldap-clientsUpgrade openldap-develUpgrade openldap-serversUpgrade openldap | Feb 23, 2022 | Nov 2, 2020 |
| Redhat_linux | — | Upgrade openldap-servers-sqlUpgrade openldap-develUpgrade openldap-clientsUpgrade openldap-debuginfoUpgrade openldapNo solution existsUpgrade openldap-servers | Feb 23, 2022 | May 28, 2021 |
| Suse | — | Upgrade openldap2-ppolicy-check-passwordUpgrade compat-libldap-2_3-0Upgrade openldap2-back-sockUpgrade openldap2-openssl1Upgrade libldap-openssl1-2_4-2-x86Upgrade libldap-openssl1-2_4-2-32bitUpgrade openldap2-back-sqlUpgrade openldap2-clientUpgrade openldap2Upgrade libldap-2_4-2Upgrade libldap-openssl1-2_4-2Upgrade openldap2-contribUpgrade libldap-2_4-2-32bitUpgrade libldap-dataUpgrade openldap2-back-perlUpgrade openldap2-develUpgrade openldap2-devel-32bitUpgrade openldap2-back-metaUpgrade openldap2-devel-staticUpgrade openldap2-docUpgrade openldap2-client-openssl1 | Jan 15, 2021 | Nov 17, 2020 |
| Ubuntu | — | Upgrade slapd (Ubuntu Pro)Upgrade slapd | Nov 18, 2020 | Nov 17, 2020 |
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