Description
camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds with cleartext data containing a password if the client wishes to use STARTTLS but the server will not use STARTTLS, which makes it easier for remote attackers to obtain sensitive information by sniffing the network. The server code was intended to report an error and not proceed, but the code was written incorrectly.
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 14 | evolution-data-server | 3.22.0-2 | — |
| Debian 13 | evolution-data-server | 3.22.0-2 | — |
| Debian 12 | evolution-data-server | 3.22.0-2 | — |
| Debian 8 | evolution-data-server | 3.12.9~git20141128.5242b0-2+deb8u4 | DLA-1443-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | evolution-data-server | 3.18.5-1ubuntu1.1 | USN-3724-1 |
| Ubuntu 14.04 LTS | evolution-data-server | 3.10.4-0ubuntu1.6 | USN-3724-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | evolution-data-server +2 | 3.12.11-37.el7 | RHBA-2016:2206 |
| RHEL 7 | evolution-ews | 3.12.11-9.el7 | RHBA-2016:2206 |
| RHEL 7 | evolution-mapi +1 | 3.12.10-5.el7 | RHBA-2016:2206 |
| RHEL 7 | openchange +3 | 2.3-2.el7 | RHBA-2016:2206 |
Advisories 3
- RHBA-2016:2206 Red Hat Bug Fix Advisory: evolution-data-server bug fix update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- USN-3724-1 evolution-data-server vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-1443-1 evolution-data-server - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/GNOME/evolution-data-server/releases/tag/EVOLUTION_DATA_SERVER_3_21_2
- https://gitlab.gnome.org/GNOME/evolution-data-server/blob/master/NEWS#L1022
- https://bugzilla.redhat.com/show_bug.cgi?id=1334842
- USN-3724-1 vendor-advisory
- https://gitlab.gnome.org/GNOME/evolution-data-server/commit/f26a6f67