CVE-2021-36093: DoS attack using PostMaster filters
First published: Mon Sep 06 2021(Updated: )
It's possible to create an email which can be stuck while being processed by PostMaster filters, causing DoS. 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 7.0.28 and prior versions; 8.0.x version 8.0.15 and prior versions.
Credit: security@otrs.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Otrs Otrs | >=6.0.1 | |
| Otrs Otrs | >=7.0.0<7.0.29 | |
| Otrs Otrs | >=8.0.0<8.0.16 |
Remedy
Update to OTRS 8.0.16, OTRS 7.0.29.
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-36093.
What is the severity of CVE-2021-36093?
The severity of CVE-2021-36093 is medium.
Which software versions are affected by CVE-2021-36093?
CVE-2021-36093 affects OTRS AG (OTRS) Community Edition 6.0.1 and later versions, OTRS AG OTRS 7.0.0 to 7.0.28, and OTRS AG OTRS 8.0.0 to 8.0.15.
How can CVE-2021-36093 be exploited?
CVE-2021-36093 can be exploited by creating an email that gets stuck while being processed by PostMaster filters, causing a Denial of Service (DoS) condition.
Is there a fix available for CVE-2021-36093?
Yes, a fix is available. Please refer to the official OTRS security advisory for more details.
- collector/nvd-index
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/severity
- agent/references
- agent/weakness
- agent/title
- agent/author
- agent/tags
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/event
- vendor/otrs
- canonical/otrs otrs
- version/otrs otrs/6.0.1
- version/otrs otrs/7.0.0
- version/otrs otrs/8.0.0