CVE-2020-14928

Severity: medium (CVSS 5.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-07-17 · updated 2026-06-17
Weakness: CWE-74

Description

evolution-data-server (eds) through 3.36.3 has a STARTTLS buffering issue that affects SMTP and POP3. When a server sends a "begin TLS" response, eds reads additional data and evaluates it in a TLS context, aka "response injection."

Affected products

Canonical Ubuntu Linux: 16.04, 18.04, 20.04
Debian Linux: 9.0, 10.0
Fedoraproject Fedora: 31
GNOME evolution-data-server: through 3.36.3

References

https://bugzilla.suse.com/show_bug.cgi?id=1173910
https://gitlab.gnome.org/GNOME//evolution-data-server/commit/ba82be72cfd427b5d72ff21f929b3a6d8529c4df
https://gitlab.gnome.org/GNOME/evolution-data-server/-/commit/f404f33fb01b23903c2bbb16791c7907e457fbac
https://gitlab.gnome.org/GNOME/evolution-data-server/-/issues/226
https://lists.debian.org/debian-lts-announce/2020/07/msg00012.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QMBEZWA22EAYAZQWUX4KPEBER726KSIG/
https://security-tracker.debian.org/tracker/DLA-2281-1
https://security-tracker.debian.org/tracker/DSA-4725-1
https://usn.ubuntu.com/4429-1/
https://www.debian.org/security/2020/dsa-4725
https://bugzilla.suse.com/show_bug.cgi?id=1173910
https://gitlab.gnome.org/GNOME//evolution-data-server/commit/ba82be72cfd427b5d72ff21f929b3a6d8529c4df

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