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Fencer Intel
medium 6.5

CVE-2018-15587 json

GNOME Evolution through 3.28.2 is prone to OpenPGP signatures being spoofed for arbitrary messages using a specially crafted email that con…

published 2019-02-11 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-7461

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

GNOME Evolution through 3.28.2 is prone to OpenPGP signatures being spoofed for arbitrary messages using a specially crafted email that contains a valid signature from the entity to be impersonated as an attachment.

Patch / fix

  • evolution Debian 14, Debian 13, Debian 12 3.30.5-1.1

debian advisories DEBIAN-CVE-2018-15587

  • evolution-data-server Ubuntu 16.04 LTS 3.18.5-1ubuntu1.2
  • evolution-data-server Ubuntu 18.04 LTS 3.28.5-0ubuntu0.18.04.2

ubuntu advisories UBUNTU-CVE-2018-15587

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • evolution RHEL 8 3.28.5-12.el8
  • evolution-ews RHEL 8 3.28.5-9.el8
  • evolution-pst RHEL 8 3.28.5-12.el8
  • evolution-help RHEL 8 3.28.5-12.el8
  • evolution-langpacks RHEL 8 3.28.5-12.el8
  • evolution-bogofilter RHEL 8 3.28.5-12.el8
  • evolution-data-server RHEL 8 3.28.5-13.el8
  • evolution-spamassassin RHEL 8 3.28.5-12.el8

red hat advisories RHSA-2020:1600RHSA-2020:1080

  • evolution SLED 12 SP4, SLED 12 SP3, SLE Workstation Extension 12 SP5 +5 more 3.22.6-19.9.1
  • evolution SLE Workstation Extension 15 SP1, SLE Workstation Extension 15 3.26.6-4.3.1

suse advisories SUSE-SU-2019:1391-2SUSE-SU-2019:1266-2SUSE-SU-2019:1391-1SUSE-SU-2019:1266-1

  • evolution openSUSE Tumbleweed 3.40.4-1.4
  • evolution openSUSE Leap 15.0 3.26.6-lp150.3.3.1
  • evolution openSUSE Leap 15.1 3.26.6-lp151.4.3.1

opensuse advisories openSUSE-SU-2024:10743-1openSUSE-SU-2019:1453-1openSUSE-SU-2019:1431-1

  • evolution Arch Linux 3.32.0-1

arch linux advisories AVG-889

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-2018-15587 updated cvss 5.4

evolution: specially crafted email leading to OpenPGP signatures being spoofed for arbitrary messages

  • Red Hat Enterprise Linux 6 evolution, evolution-pst, evolution-help, evolution-perl, evolution-conduits, evolution-spamassassin
    affected: no fix planned “Will not fix”
  • Red Hat CodeReady Linux Builder (v. 8) evolution-data-server-perl 3.28.5-13.el8, evolution-data-server-tests 3.28.5-13.el8 Red Hat Enterprise Linux AppStream (v. 8) evolution 3.28.5-12.el8, evolution-ews 3.28.5-9.el8, evolution-pst 3.28.5-12.el8, evolution-help 3.28.5-12.el8, evolution-langpacks 3.28.5-12.el8, evolution-bogofilter 3.28.5-12.el8, +4 more
    fixed: vendor fix RHSA-2020:1600
  • 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-help 3.28.5-8.el7, evolution-langpacks 3.28.5-8.el7, evolution-data-server 3.28.5-4.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) evolution-pst 3.28.5-8.el7, evolution-bogofilter 3.28.5-8.el7, evolution-spamassassin 3.28.5-8.el7, evolution-data-server-perl 3.28.5-4.el7, evolution-data-server-tests 3.28.5-4.el7 Red Hat Enterprise Linux ComputeNode (v. 7) atk 2.28.1-2.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) 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-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, +4 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-help 3.28.5-8.el7, evolution-langpacks 3.28.5-8.el7, evolution-data-server 3.28.5-4.el7, +2 more Red Hat Enterprise Linux Workstation Optional (v. 7) evolution-pst 3.28.5-8.el7, evolution-bogofilter 3.28.5-8.el7, evolution-spamassassin 3.28.5-8.el7, evolution-data-server-perl 3.28.5-4.el7, evolution-data-server-tests 3.28.5-4.el7
    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

2.44% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugzilla.gnome.org https://bugzilla.gnome.org/show_bug.cgi?id=796424 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-347 Improper Verification of Cryptographic Signature

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.