CVE-2020-36221 is an integer underflow vulnerability in OpenLDAP versions prior to 2.4.57, also affecting Apple and Debian, which can lead to a denial of service (DoS) due to slapd crashes during Certificate Exact Assertion processing. With a CVSS score of 7.5 (High), this vulnerability is remotely exploitable with low attack complexity, requiring no user interaction, and its primary impact is availability. Despite its high risk score and EPSS percentile, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.4.57CPE matchmatch criteria | cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | ||
>= 10.14.0, < 10.14.6CPE matchmatch criteria | cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | ||
10.14.6CPE matchmatch criteria | cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Third-Party Package Updates in Splunk Enterprise - October 2024
Oct 14, 2024AS-2022-012: OpenLDAP
Aug 29, 2022openldap: Integer underflow in serialNumberAndIssuerCheck in schema_init.c
Jan 26, 2021An 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).
Jan 12, 2021