Description
Directory traversal vulnerability in GNU Mailman before 2.1.20, when not using a static alias, allows remote attackers to execute arbitrary files via a .. (dot dot) in a list name.
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 7 | mailman | 1:2.1.15-1+deb7u1 | DSA-3214-1 |
| Debian 6.0 | mailman | 1:2.1.13-6 | DLA-186-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | mailman | 1:2.1.16-2ubuntu0.1 | USN-2558-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | mailman | 3:2.1.15-21.ael7b_1 | RHSA-2015:1153 |
| RHEL 6 | mailman | 3:2.1.12-25.el6 | RHSA-2015:1417 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | mailman | 2.1.17-3.3.3 | SUSE-SU-2018:4296-1 |
| SLES 12 SP3 | mailman | 2.1.17-3.3.3 | SUSE-SU-2018:4296-1 |
| SLES 12 SP2 | mailman | 2.1.17-3.3.3 | SUSE-SU-2018:4296-1 |
| SLES 12 SP1 | mailman | 2.1.17-3.3.3 | SUSE-SU-2018:4296-1 |
| SLES 12 | mailman | 2.1.17-3.3.3 | SUSE-SU-2018:4296-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | mailman | 2.1.15-9.6.6.1 | SUSE-SU-2019:13924-1 |
| SLES 11 SP3 | mailman | 2.1.15-9.6.6.1 | SUSE-SU-2019:13924-1 |
| SLES for SAP 12 SP4 | mailman | 2.1.17-3.3.3 | SUSE-SU-2018:4296-1 |
| SLES for SAP 12 SP3 | mailman | 2.1.17-3.3.3 | SUSE-SU-2018:4296-1 |
| SLES for SAP 12 SP2 | mailman | 2.1.17-3.3.3 | SUSE-SU-2018:4296-1 |
| SLES for SAP 12 SP1 | mailman | 2.1.17-3.3.3 | SUSE-SU-2018:4296-1 |
| SLES for SAP 11 SP4 | mailman | 2.1.15-9.6.6.1 | SUSE-SU-2019:13924-1 |
| SUSE OpenStack Cloud 7 | mailman | 2.1.17-3.3.3 | SUSE-SU-2018:4296-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | mailman | 2.1.15-9.6.6.1 | SUSE-SU-2019:13924-1 |
| SUSE Enterprise Storage 4 | mailman | 2.1.17-3.3.3 | SUSE-SU-2018:4296-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mailman | 2.1.23-1.2 | openSUSE-SU-2024:10215-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | mailman | 3:2.1.15-21.el7_1 | ELSA-2015-1153 |
Advisories 9
- RHSA-2015:1417 Red Hat Security Advisory: mailman security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2015:1153 Red Hat Security Advisory: mailman security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DLA-186-1 mailman - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3214-1 mailman - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2558-1 mailman vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2019:13924-1 Security update for mailman SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:4296-1 Security update for mailman SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10215-1 mailman-2.1.23-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2015-1153 Moderate: mailman security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 23, 2015
References
- https://bugs.launchpad.net/mailman/+bug/1437145
- DSA-3214 vendor-advisory
- RHSA-2015:1153 vendor-advisory
- RHSA-2015:1417 vendor-advisory
- FEDORA-2015-5333 vendor-advisory
- USN-2558-1 vendor-advisory
- FEDORA-2015-5216 vendor-advisory
- [Mailman-Developers] 20150327 Security patch and Mailman 2.1.20 to be released on 31 March mailing-list
- [Mailman-Announce] 20150327 Mailman 2.1.20 release mailing-list
- [Mailman-Developers] 20150331 Security patch and Mailman 2.1.20 to be released on 31 March mailing-list
- 1032033 vdb-entry
- 73922 vdb-entry