CVE-2020-12243

In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).

• CWE-674

• https://lists.opensuse.org/opensuse-security-announce/2020-05/msg00016.htmlMailing List, Third Party Advisory
• https://bugs.openldap.org/show_bug.cgi?id=9202Exploit, Patch, Vendor Advisory
• https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_4/CHANGESRelease Notes, Vendor Advisory
• https://git.openldap.org/openldap/openldap/-/commit/98464c11df8247d6a11b52e294ba5dd4f0380440Patch, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2020/05/msg00001.htmlMailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20200511-0003/Third Party Advisory
• https://support.apple.com/kb/HT211289Third Party Advisory
• https://usn.ubuntu.com/4352-1/Third Party Advisory
• https://usn.ubuntu.com/4352-2/Third Party Advisory
• https://www.debian.org/security/2020/dsa-4666Third Party Advisory
• https://www.oracle.com/security-alerts/cpuapr2022.htmlThird Party Advisory
• https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch, Third Party Advisory
• https://lists.opensuse.org/opensuse-security-announce/2020-05/msg00016.htmlMailing List, Third Party Advisory
• https://bugs.openldap.org/show_bug.cgi?id=9202Exploit, Patch, Vendor Advisory
• https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_4/CHANGESRelease Notes, Vendor Advisory
• https://git.openldap.org/openldap/openldap/-/commit/98464c11df8247d6a11b52e294ba5dd4f0380440Patch, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2020/05/msg00001.htmlMailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20200511-0003/Third Party Advisory
• https://support.apple.com/kb/HT211289Third Party Advisory
• https://usn.ubuntu.com/4352-1/Third Party Advisory
• https://usn.ubuntu.com/4352-2/Third Party Advisory
• https://www.debian.org/security/2020/dsa-4666Third Party Advisory
• https://www.oracle.com/security-alerts/cpuapr2022.htmlThird Party Advisory
• https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch, Third Party Advisory
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html

Published

Apr 28, 2020

Last Modified

Oct 14, 2026

Status

Modified

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