CVE-2019-3883 is a Denial of Service vulnerability affecting 389-ds-base up to version 1.4.1.2, including various Debian, Fedora, and Red Hat distributions. An unauthenticated attacker can exploit this by repeatedly sending hanging LDAP requests over SSL/TLS, which bypasses the configured I/O timeout for unencrypted connections, causing all worker threads to hang. This vulnerability has a CVSS score of 7.5 (High) due to its network attack vector, low attack complexity, and high impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 1.4.1.2CPE matchmatch criteria | cpe:2.3:a:fedoraproject:389_directory_server:*:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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.