CVE-2019-3883: 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…

PriorityP348high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

8.43%

94.4th percentile

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.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
debian	389-ds-base	< 389-ds-base 1.4.1.5-1 (bookworm)	389-ds-base 1.4.1.5-1 (bookworm)
debian	debian_linux	—	—
fedoraproject	389_directory_server	<= 1.4.1.2	—
port389	389-ds-base	>= 0 < 1.4.1.5-1	1.4.1.5-1
port389	389-ds-base	>= 0 < 1.4.1.5-1	1.4.1.5-1
port389	389-ds-base	>= 0 < 1.4.1.5-1	1.4.1.5-1
red_hat	389-ds-base	—	—
redhat	enterprise_linux	—	—

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvdv3.05.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

osv7.5HIGH

vendor_debian7.5HIGH

vendor_redhat7.5HIGH

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