CVE-2020-36229 Denial of service in n/a
A flaw in OpenLDAP's X.509 DN parsing causes a slapd crash, allowing attackers to cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-36229?
CVE-2020-36229 is a high-severity denial of service vulnerability in Apple Mac Os X, published on 25 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-843
Which versions are affected by CVE-2020-36229?
1 open source package ship an affected version, including openldap. It affects 4 products.
| Package | Affected | Fixed in |
|---|---|---|
openldap Bitnami | All versions | 2.4.57 |
Products include Apple Mac Os X, Apple Macos, Debian Debian Linux, Openldap Openldap.
How do I fix CVE-2020-36229?
Upgrade openldap to 2.4.57 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-36229 being exploited?
There is no known exploitation of CVE-2020-36229 in the wild and no public exploit code.
Other vulnerabilities in Apple Mac Os X
Sources
Also known as ALPINE-CVE-2020-36229, BIT-openldap-2020-36229, CLEANSTART-2026-XM36782, DEBIAN-CVE-2020-36229, GHSA-2vm8-9q6f-6vxg, JLSEC-2026-171 and 1 more.