CVE-2021-20185

CVSS V2 Medium 5 CVSS V3 Medium 5.3
Description
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.
Overview
  • CVE ID
  • CVE-2021-20185
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-01-28T20:15:13
  • Last Modified Date
  • 2022-10-21T20:10:40
Weakness Enumerations
CWE URL
CWE-770 http://cwe.mitre.org/data/definitions/770.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* 1 OR 3.5.0 3.5.16
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* 1 OR 3.8.0 3.8.7
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* 1 OR 3.9.0 3.9.4
cpe:2.3:a:moodle:moodle:3.10.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • LOW
  • Base Score
  • 5.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://moodle.org/mod/forum/discuss.php?d=417168 Patch Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-20185
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20185
History
Created Old Value New Value Data Type Notes
2022-05-10 07:24:35 Added to TrackCVE
2022-12-05 21:03:39 2021-01-28T20:15Z 2021-01-28T20:15:13 CVE Published Date updated
2022-12-05 21:03:39 2022-10-21T20:10:40 CVE Modified Date updated
2022-12-05 21:03:39 Analyzed Vulnerability Status updated