CVE catalog
CVE-2021-42096
Security update for mailman
- Severity
- Medium · CVSS 5.3
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 1.25% · Oct 25, 2026
Andre Protas, Richard Cloke, and Andy Nuttall discovered that Mailman did not properly associate cross-site request forgery (CSRF) tokens to specific accounts. A remote attacker could use this to perform a CSRF attack to gain access to another account. (CVE-2021-42097) Andre Protas, Richard Cloke, and Andy Nuttall discovered that Mailman's cross-site request forgery (CSRF) tokens for the options page are derived from the admin password. A remote attacker could possibly use this to assist in performing a brute force attack against the admin password. (CVE-2021-42096)
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Ubuntu | mailman | pro | 1:2.1.20-1 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.1 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.3 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.4 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.5 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.6 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.6+esm1 | fixed |
| Ubuntu | mailman | 18.04 | 1:2.1.23-1 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.24-1 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.25-1 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.26-1 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.26-1ubuntu0.1 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.26-1ubuntu0.2 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.26-1ubuntu0.3 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.26-1ubuntu0.4 | fixed |
| Debian | mailman | 10 | 1:2.1.29-1 | vulnerable |
| Debian | mailman | 10 | 1:2.1.29-1+deb10u1 | vulnerable |
| Debian | mailman | 10 | 1:2.1.29-1+deb10u2 | fixed |
| Debian | mailman | 9 | 1:2.1.23-1 | vulnerable |
| Debian | mailman | 9 | 1:2.1.23-1+deb9u1 | vulnerable |
| Debian | mailman | 9 | 1:2.1.23-1+deb9u2 | vulnerable |
| Debian | mailman | 9 | 1:2.1.23-1+deb9u3 | vulnerable |
| Debian | mailman | 9 | 1:2.1.23-1+deb9u4 | vulnerable |
| Debian | mailman | 9 | 1:2.1.23-1+deb9u5 | vulnerable |
| Debian | mailman | 9 | 1:2.1.23-1+deb9u6 | vulnerable |
| Debian | mailman | 9 | 1:2.1.23-1+deb9u7 | fixed |
| Ubuntu | mailman | pro | 1:2.1.20-1 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.1 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.3 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.4 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.5 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.6 | vulnerable |
| Ubuntu | mailman | pro | 1:2.1.20-1ubuntu0.6+esm1 | fixed |
| Ubuntu | mailman | 18.04 | 1:2.1.23-1 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.24-1 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.25-1 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.26-1 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.26-1ubuntu0.1 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.26-1ubuntu0.2 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.26-1ubuntu0.3 | vulnerable |
| Ubuntu | mailman | 18.04 | 1:2.1.26-1ubuntu0.4 | fixed |
| Ubuntu | mailman | 20.04 | 1:2.1.29-1 | vulnerable |
| Ubuntu | mailman | 20.04 | 1:2.1.29-1build1 | vulnerable |
| Ubuntu | mailman | 20.04 | 1:2.1.29-1ubuntu3 | vulnerable |
| Ubuntu | mailman | 20.04 | 1:2.1.29-1ubuntu3.1 | fixed |
| Suse | mailman | package hub 15 sp2 | 2.1.35-bp152.7.6.1 | fixed |
| Opensuse | mailman | leap 15.2 | 2.1.35-lp152.7.6.1 | fixed |
| Suse | mailman | hpe helion openstack 8 | 2.1.17-3.26.1 | fixed |
| Suse | mailman | openstack cloud 8 | 2.1.17-3.26.1 | fixed |
| Suse | mailman | openstack cloud 9 | 2.1.17-3.26.1 | fixed |
| Suse | mailman | openstack cloud crowbar 8 | 2.1.17-3.26.1 | fixed |
| Suse | mailman | openstack cloud crowbar 9 | 2.1.17-3.26.1 | fixed |
| Suse | mailman | linux enterprise server for sap applications 12 sp3 | 2.1.17-3.26.1 | fixed |
| Suse | mailman | linux enterprise server for sap applications 12 sp4 | 2.1.17-3.26.1 | fixed |
| Suse | mailman | linux enterprise server 12 sp2-bcl | 2.1.17-3.26.1 | fixed |
| Suse | mailman | linux enterprise server 12 sp3-ltss | 2.1.17-3.26.1 | fixed |
| Suse | mailman | linux enterprise server 12 sp3-bcl | 2.1.17-3.26.1 | fixed |
| Suse | mailman | linux enterprise server 12 sp4-ltss | 2.1.17-3.26.1 | fixed |
| Suse | mailman | linux enterprise server 12 sp5 | 2.1.17-3.26.1 | fixed |
| Suse | mailman | linux enterprise server for sap applications 12 sp5 | 2.1.17-3.26.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Ubuntu | mailman | deb | pro | 1:2.1.20-1ubuntu0.6+esm1 | Not reported | USN-5121-1 | Not reported |
| Ubuntu | mailman | deb | 18.04 | 1:2.1.26-1ubuntu0.4 | Not reported | USN-5121-1 | Not reported |
| Debian | mailman | deb | 10 | 1:2.1.29-1+deb10u2 | Not reported | DSA-4991-1 | Not reported |
| Debian | mailman | deb | 9 | 1:2.1.23-1+deb9u7 | Not reported | DLA-2791-1 | Not reported |
| Ubuntu | mailman | deb | pro | 1:2.1.20-1ubuntu0.6+esm1 | Not reported | UBUNTU-CVE-2021-42096 | Not reported |
| Ubuntu | mailman | deb | 18.04 | 1:2.1.26-1ubuntu0.4 | Not reported | UBUNTU-CVE-2021-42096 | Not reported |
| Ubuntu | mailman | deb | 20.04 | 1:2.1.29-1ubuntu3.1 | Not reported | UBUNTU-CVE-2021-42096 | Not reported |
| Suse | mailman | rpm | package hub 15 sp2 | 2.1.35-bp152.7.6.1 | Not reported | OPENSUSE-SU-2021:1452-1 | Not reported |
| Opensuse | mailman | rpm | leap 15.2 | 2.1.35-lp152.7.6.1 | Not reported | OPENSUSE-SU-2021:1436-1 | Not reported |
| Suse | mailman | rpm | hpe helion openstack 8 | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | openstack cloud 8 | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | openstack cloud 9 | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | openstack cloud crowbar 8 | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | openstack cloud crowbar 9 | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | linux enterprise server for sap applications 12 sp3 | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | linux enterprise server for sap applications 12 sp4 | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | linux enterprise server 12 sp2-bcl | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | linux enterprise server 12 sp3-ltss | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | linux enterprise server 12 sp3-bcl | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | linux enterprise server 12 sp4-ltss | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | linux enterprise server 12 sp5 | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
| Suse | mailman | rpm | linux enterprise server for sap applications 12 sp5 | 2.1.17-3.26.1 | Not reported | SUSE-SU-2022:1886-1 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2021_4826.json]
- [https://osv.dev/vulnerability/DLA-2791-1]
- [https://osv.dev/vulnerability/DSA-4991-1]
- [https://osv.dev/vulnerability/SUSE-SU-2022:1886-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2021-42096]
- [https://osv.dev/vulnerability/USN-5121-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2021:1436-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2021:1452-1]
- [https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-42096.json]
[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]