CVE-2019-3883
389-ds-base - security update
7.5
HIGH
CVSS 3.1
EPSS 0.87%
Description
In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.
How to fix CVE-2019-3883
To remediate CVE-2019-3883, upgrade the affected package to a fixed version below.
- —upgrade to 1.4.1.5-1 or later
- —upgrade to 1.3.3.5-4+deb8u6 or later
Is CVE-2019-3883 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.4.1.5-1
- from 0, < 1.3.3.5-4+deb8u6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |