Debian DSA-4792-1 : openldap - security update

high Nessus Plugin ID 143002


The remote Debian host is missing a security-related update.


Two vulnerabilities in the certificate list syntax verification and in the handling of CSN normalization were discovered in OpenLDAP, a free implementation of the Lightweight Directory Access Protocol. An unauthenticated remote attacker can take advantage of these flaws to cause a denial of service (slapd daemon crash) via specially crafted packets.


Upgrade the openldap packages.

For the stable distribution (buster), these problems have been fixed in version 2.4.47+dfsg-3+deb10u4.

See Also

Plugin Details

Severity: High

ID: 143002

File Name: debian_DSA-4792.nasl

Version: 1.2

Type: local

Agent: unix

Published: 11/18/2020

Updated: 4/20/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information

CVSS Score Source: CVE-2020-25710


Risk Factor: Medium

Score: 4.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:openldap, cpe:/o:debian:debian_linux:10.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 11/17/2020

Reference Information

CVE: CVE-2020-25709, CVE-2020-25710

DSA: 4792