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.
https://bugs.openldap.org/show_bug.cgi?id=9425
https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57
https://git.openldap.org/openldap/openldap/-/commit/4bdfffd2889c0c5cdf58bebafbdc8fce4bb2bff0
https://lists.debian.org/debian-lts-announce/2021/02/msg00005.html
https://www.debian.org/security/2021/dsa-4845
https://security.netapp.com/advisory/ntap-20210226-0002/
https://support.apple.com/kb/HT212529
http://seclists.org/fulldisclosure/2021/May/70
http://seclists.org/fulldisclosure/2021/May/64
http://seclists.org/fulldisclosure/2021/May/65
https://support.apple.com/kb/HT212530
https://support.apple.com/kb/HT212531
https://lists.apache.org/thread.html/[email protected]%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Cissues.bookkeeper.apache.org%3E
Source: MITRE
Published: 2021-01-26
Updated: 2022-04-13
Type: CWE-843
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH