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Fencer Intel
high 8.1

CVE-2019-3890 json

It was discovered evolution-ews before 3.31.3 does not check the validity of SSL certificates.

published 7y ago modified 4mo ago also EUVD-2019-13499

cvss
8.1
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

It was discovered evolution-ews before 3.31.3 does not check the validity of SSL certificates. An attacker could abuse this flaw to get confidential information by tricking the user into connecting to a fake server without the user noticing the difference.

Patch / fix

  • gnome evolution-ews 3.31.3
  • evolution-ews Debian 14, Debian 13, Debian 12 3.30.5-1.1

debian advisories DEBIAN-CVE-2019-3890

  • evolution RHEL 7 3.28.5-8.el7
  • atk RHEL 7 2.28.1-2.el7
  • evolution-ews RHEL 7 3.28.5-5.el7
  • evolution-pst RHEL 7 3.28.5-8.el7
  • evolution-help RHEL 7 3.28.5-8.el7
  • evolution-langpacks RHEL 7 3.28.5-8.el7
  • evolution-bogofilter RHEL 7 3.28.5-8.el7
  • evolution-data-server RHEL 7 3.28.5-4.el7

red hat advisories RHSA-2020:1080RHSA-2019:3699

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-3890 updated cvss 8.1

evolution-ews: all certificate errors ignored if error is ignored during initial account setup in gnome-online-accounts

  • Red Hat CodeReady Linux Builder (v. 8) evolution 3.28.5-9.el8, evolution-pst 3.28.5-9.el8, evolution-help 3.28.5-9.el8, evolution-langpacks 3.28.5-9.el8, evolution-bogofilter 3.28.5-9.el8, evolution-data-server 3.28.5-11.el8, +4 more Red Hat Enterprise Linux AppStream (v. 8) evolution 3.28.5-9.el8, evolution-ews 3.28.5-5.el8, evolution-pst 3.28.5-9.el8, evolution-help 3.28.5-9.el8, evolution-langpacks 3.28.5-9.el8, evolution-bogofilter 3.28.5-9.el8, +6 more
    fixed: vendor fix RHSA-2019:3699
  • Red Hat Enterprise Linux Client (v. 7) atk 2.28.1-2.el7, evolution 3.28.5-8.el7, evolution-ews 3.28.5-5.el7, evolution-pst 3.28.5-8.el7, evolution-help 3.28.5-8.el7, evolution-langpacks 3.28.5-8.el7, +7 more Red Hat Enterprise Linux Client Optional (v. 7) atk 2.28.1-2.el7, evolution 3.28.5-8.el7, evolution-pst 3.28.5-8.el7, evolution-help 3.28.5-8.el7, evolution-langpacks 3.28.5-8.el7, evolution-bogofilter 3.28.5-8.el7, +5 more Red Hat Enterprise Linux ComputeNode (v. 7) atk 2.28.1-2.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) atk 2.28.1-2.el7, evolution-data-server 3.28.5-4.el7, evolution-data-server-perl 3.28.5-4.el7, evolution-data-server-tests 3.28.5-4.el7, evolution-data-server-langpacks 3.28.5-4.el7 Red Hat Enterprise Linux Server (v. 7) atk 2.28.1-2.el7, evolution-data-server 3.28.5-4.el7, evolution-data-server-perl 3.28.5-4.el7, evolution-data-server-tests 3.28.5-4.el7, evolution-data-server-langpacks 3.28.5-4.el7 Red Hat Enterprise Linux Server Optional (v. 7) evolution 3.28.5-8.el7, evolution-ews 3.28.5-5.el7, evolution-pst 3.28.5-8.el7, evolution-help 3.28.5-8.el7, evolution-langpacks 3.28.5-8.el7, evolution-bogofilter 3.28.5-8.el7, +6 more
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) atk 2.28.1-2.el7, evolution 3.28.5-8.el7, evolution-ews 3.28.5-5.el7, evolution-pst 3.28.5-8.el7, evolution-help 3.28.5-8.el7, evolution-langpacks 3.28.5-8.el7, +7 more Red Hat Enterprise Linux Workstation Optional (v. 7) evolution 3.28.5-8.el7, evolution-pst 3.28.5-8.el7, evolution-help 3.28.5-8.el7, evolution-langpacks 3.28.5-8.el7, evolution-bogofilter 3.28.5-8.el7, evolution-data-server 3.28.5-4.el7, +4 more
    fixed: vendor fix RHSA-2020:1080

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.99% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 8.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
NVD 3.0 8.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N

Affected products

  • The Gnome Project evolution-ews

Classification

Weakness
  • CWE-295 Improper Certificate Validation
  • CWE-296 Improper Following of a Certificate's Chain of Trust

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.