Description
Improper Check for filenames with overly long extensions in PostMaster (sending in email) or uploading files (e.g. attaching files to mails) of ((OTRS)) Community Edition and OTRS allows an remote attacker to cause an endless loop. This issue affects: OTRS AG: ((OTRS)) Community Edition 5.0.x version 5.0.38 and prior versions; 6.0.x version 6.0.23 and prior versions. OTRS AG: OTRS 7.0.x version 7.0.12 and prior versions.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 11 | otrs2 | 6.0.24-1 | — |
| Debian 10 | otrs2 | 6.0.16-2+deb10u1 | DLA-3551-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | otrs2 | No fix yet | — |
| Ubuntu 16.04 LTS | otrs2 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP2 | otrs | 6.0.29-bp152.2.5.4 | openSUSE-SU-2020:1509-1, openSUSE-SU-2020:1475-1 |
| SUSE Package Hub 15 SP1 | otrs | 5.0.42-bp151.3.3.1 | openSUSE-SU-2020:1475-1, openSUSE-SU-2020:0551-1 |
| SUSE Package Hub 15 | otrs | 5.0.42-bp151.3.3.1 | openSUSE-SU-2020:0551-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.2 | otrs | 6.0.29-bp152.2.5.4 | openSUSE-SU-2020:1475-1 |
| openSUSE Leap 15.1 | otrs | 5.0.42-bp151.3.3.1 | openSUSE-SU-2020:1475-1, openSUSE-SU-2020:0551-1 |
Advisories 5
- DLA-3551-1 otrs2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2020:1509-1 Recommended update for otrs SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0551-1 Recommended update for otrs SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1475-1 Recommended update for otrs SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2225 OTRS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 30, 2023
References
- https://community.otrs.com/security-advisory-2019-15-security-update-for-otrs-framework/
- openSUSE-SU-2020:0551 vendor-advisory
- openSUSE-SU-2020:1475 vendor-advisory
- openSUSE-SU-2020:1509 vendor-advisory
- [debian-lts-announce] 20230831 [SECURITY] [DLA 3551-1] otrs2 security update mailing-list