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CVE-2020-35518

Published: 26 March 2021

When binding against a DN during authentication, the reply from 389-ds-base will be different whether the DN exists or not. This can be used by an unauthenticated attacker to check the existence of an entry in the LDAP database.

Priority

Medium

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
389-ds-base
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(1.4.4.11-1)
impish Not vulnerable
(1.4.4.11-2build1)
trusty Does not exist
(trusty was not-affected [code not present])
upstream
Released (1.4.2.17, 1.4.3.18, 1.4.4.10, 2.0.2)
xenial Not vulnerable
(code not present)
bionic Not vulnerable
(code not present)
groovy Ignored
(end of life)
jammy Not vulnerable
(2.0.2)
focal
Released (1.4.3.6-2ubuntu0.1~esm1)
Available with Ubuntu Pro
kinetic Not vulnerable
(2.0.2)
lunar Not vulnerable
(2.0.2)
mantic Not vulnerable
(2.0.2)
Patches:
upstream: https://github.com/389ds/389-ds-base/commit/cc0f69283abc082488824702dae485b8eae938bc (master)
upstream: https://github.com/389ds/389-ds-base/commit/38b97faef8a6421a7a638ecdbf0b341e2b3f9ab3 (1.4.4)
upstream: https://github.com/389ds/389-ds-base/commit/c8e77b811b2f07a71c9cd0058a83e77e47edcd72 (1.4.3)
upstream: https://github.com/389ds/389-ds-base/commit/16d9020a8ae1bd5ed1fd7ca1ad8041c889a88c1f (1.4.2)

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N