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CVE-2021-20185

Published: 28 January 2021

It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that messaging did not impose a character limit when sending messages, which could result in client-side (browser) denial of service for users receiving very large messages.

Priority

Medium

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
moodle
Launchpad, Ubuntu, Debian
bionic Needed

focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty Does not exist

upstream
Released (3.10.1, 3.9.4, 3.8.7, 3.5.16)
impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

xenial Needed

mantic Does not exist

Patches:
upstream: https://git.moodle.org/gw?p=moodle.git;a=commit;h=ce87be7db6a1a71182c13fe210881d9c003d5352

Severity score breakdown

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