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CVE-2020-36229

Good to know:

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Date: January 25, 2021

A flaw was discovered in ldap_X509dn2bv in OpenLDAP before 2.4.57 leading to a slapd crash in the X.509 DN parsing in ad_keystring, resulting in denial of service.

Language: C

Severity Score

Related Resources (22)

https://support.apple.com/kb/HT212530
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/02/msg00005.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-36229
https://support.apple.com/kb/HT212531
https://security.alpinelinux.org/vuln/CVE-2020-36229
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://security-tracker.debian.org/tracker/CVE-2020-36229
https://support.apple.com/kb/HT212529
https://bugs.openldap.org/show_bug.cgi?id=9425
https://nvd.nist.gov/vuln/detail/CVE-2020-36229
https://access.redhat.com/security/cve/CVE-2020-36229
http://seclists.org/fulldisclosure/2021/May/70
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://git.openldap.org/openldap/openldap/-/commit/4bdfffd2889c0c5cdf58bebafbdc8fce4bb2bff0
https://security.netapp.com/advisory/ntap-20210226-0002/
http://seclists.org/fulldisclosure/2021/May/65
http://seclists.org/fulldisclosure/2021/May/64
https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57
https://www.debian.org/security/2021/dsa-4845
https://www.mend.io/vulnerability-database/CVE-2020-36229

Severity Score

Weakness Type (CWE)

Access of Resource Using Incompatible Type ('Type Confusion')

CWE-843

Top Fix

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Upgrade to version OPENLDAP_REL_ENG_2_4_57

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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