NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package evolution-data-server (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1604-EVOLUTIONDATASERVER-1138151
- published26 Feb 2026
- disclosed29 Jul 2020
Introduced: 29 Jul 2020
CVE-2020-16117 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:16.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream evolution-data-server package and not the evolution-data-server package as distributed by Ubuntu.
In GNOME evolution-data-server before 3.35.91, a malicious server can crash the mail client with a NULL pointer dereference by sending an invalid (e.g., minimal) CAPABILITY line on a connection attempt. This is related to imapx_free_capability and imapx_connect_to_server.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-16117
- https://gitlab.gnome.org/GNOME/evolution-data-server/-/commit/2cc39592b532cf0dc994fd3694b8e6bf924c9ab5
- https://gitlab.gnome.org/GNOME/evolution-data-server/-/commit/627c3cdbfd077e59aa288c85ff8272950577f1d7
- https://gitlab.gnome.org/GNOME/evolution-data-server/-/issues/189
- https://lists.debian.org/debian-lts-announce/2020/08/msg00005.html