CVE-2021-21439

DoS attack can be performed when an email contains specially designed URL in the body. It can lead to the high CPU usage and cause low quality of service, or in extreme case bring the system to a halt. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.26 and prior versions; 8.0.x version 8.0.13 and prior versions.

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html
https://otrs.com/release-notes/otrs-security-advisory-2021-09/	Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html
https://otrs.com/release-notes/otrs-security-advisory-2021-09/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:otrs:otrs:::::community:::*
	cpe:2.3:a:otrs:otrs::::::::
	cpe:2.3:a:otrs:otrs::::::::

History

21 Nov 2024, 05:48

Type	Values Removed	Values Added
References	~~() https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html -~~	() https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html -
References	~~() https://otrs.com/release-notes/otrs-security-advisory-2021-09/ - Vendor Advisory~~	() https://otrs.com/release-notes/otrs-security-advisory-2021-09/ - Vendor Advisory

31 Aug 2023, 03:15

Type	Values Removed	Values Added
References		(MLIST) https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html -

Information

Published : 2021-06-14 08:15

Updated : 2024-11-21 05:48

NVD link : CVE-2021-21439

Mitre link : CVE-2021-21439

CVE.ORG link : CVE-2021-21439

JSON object : View

Products Affected

otrs

otrs

CWE

CWE-754

Improper Check for Unusual or Exceptional Conditions

CWE-755

Improper Handling of Exceptional Conditions

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