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TI-2020-12676 Aliases CVE-2020-16117GHSA-j89v-2w65-5qmq

In GNOME evolution-data-server before 3.35.91, a malicious server can crash the mail…

Priority LOW 31CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 2 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

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.

Why it matters now

EPSS 0.02123 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 3 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:gnome:evolution-data-server:*:*:*:*:*:*:*:*before 3.35.91VulnerableGNOME
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
  • cpe:2.3:a:gnome:evolution-data-server:*:*:*:*:*:*:*:* Versions before 3.35.91 Vulnerable ·GNOME
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian

Remediation

Red Hat 1 advisory

  • RHSA-2021:1752 Released 2021-05-18 · Red Hat rating Low
    evolution security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) evolution-data-server-doc-3.28.5-15.el8, evolution-data-server-perl-3.28.5-15.el8, evolution-data-server-tests-3.28.5-15.el8 +1
    • Red Hat Enterprise Linux AppStream (v. 8) evolution-3.28.5-16.el8, evolution-bogofilter-3.28.5-16.el8, evolution-data-server-3.28.5-15.el8 +8

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2021:1752
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:1752

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-16117
  2. 2026-10-03 Alias added: GHSA-j89v-2w65-5qmq

References

Exploit 1

Patch 1

Advisory 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences