High severity7.5NVD Advisory· Published Jan 26, 2021· Updated Jun 17, 2026
CVE-2020-36221
CVE-2020-36221
Description
An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate Exact Assertion processing, resulting in denial of service (schema_init.c serialNumberAndIssuerCheck).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
65cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*+ 17 more
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*range: >=10.14.0,<10.14.6
- cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-004:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-005:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-006:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-007:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-001:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-002:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-003:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update_2:*:*:*:*:*:*
- OpenLDAP/OpenLDAPdescription
- osv-coords41 versionspkg:bitnami/openldappkg:rpm/opensuse/openldap2&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/openldap2&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/openldap2&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP2pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2012pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP2pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/openldap2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/openldap2&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/openldap2&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/openldap2&distro=SUSE%20Manager%20Server%204.0pkg:rpm/suse/openldap2&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/openldap2&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/openldap2&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/openldap2&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/openldap2&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/openldap2-client&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/openldap2-client&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/openldap2-client-openssl1&distro=SUSE%20Linux%20Enterprise%20Server%2011-SECURITY
< 2.4.57+ 40 more
- (no CPE)range: < 2.4.57
- (no CPE)range: < 2.4.46-lp152.14.18.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.41-39.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.26-0.74.26.1
- (no CPE)range: < 2.4.26-0.74.26.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.41-39.1
- (no CPE)range: < 2.4.41-39.1
- (no CPE)range: < 2.4.41-39.1
- (no CPE)range: < 2.4.41-39.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.46-9.48.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.41-18.83.1
- (no CPE)range: < 2.4.26-0.74.26.1
- (no CPE)range: < 2.4.26-0.74.26.1
- (no CPE)range: < 2.4.26-0.74.26.1
Patches
Vulnerability mechanics
References
16- git.openldap.org/openldap/openldap/-/commit/38ac838e4150c626bbfa0082b7e2cf3a2bb4df31nvdPatchVendor Advisory
- git.openldap.org/openldap/openldap/-/commit/58c1748e81c843c5b6e61648d2a4d1d82b47e842nvdPatchVendor Advisory
- seclists.org/fulldisclosure/2021/May/64nvdMailing ListThird Party Advisory
- seclists.org/fulldisclosure/2021/May/65nvdMailing ListThird Party Advisory
- seclists.org/fulldisclosure/2021/May/70nvdMailing ListThird Party Advisory
- bugs.openldap.org/show_bug.cginvdIssue TrackingVendor Advisory
- bugs.openldap.org/show_bug.cginvdIssue TrackingVendor Advisory
- git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57nvdRelease NotesVendor Advisory
- lists.debian.org/debian-lts-announce/2021/02/msg00005.htmlnvdMailing ListThird Party Advisory
- security.netapp.com/advisory/ntap-20210226-0002/nvdThird Party Advisory
- support.apple.com/kb/HT212529nvdThird Party Advisory
- support.apple.com/kb/HT212530nvdThird Party Advisory
- support.apple.com/kb/HT212531nvdThird Party Advisory
- www.debian.org/security/2021/dsa-4845nvdThird Party Advisory
- lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3Envd
- lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Envd
News mentions
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