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Fencer Vulns
medium 4.9

CVE-2023-5616 json

In Ubuntu, gnome-control-center did not properly reflect SSH remote login status when the system was configured to use systemd socket activ…

published 2025-04-15 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2023-57909

cvss
4.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

In Ubuntu, gnome-control-center did not properly reflect SSH remote login status when the system was configured to use systemd socket activation for openssh-server. This could unknowingly leave the local machine exposed to remote SSH access contrary to expectation of the user.

Patch / fix

  • Canonical Ltd. Ubuntu's gnome-control-center 1:3.36.5-0ubuntu4.1, 1:41.7-0ubuntu0.22.04.8, 1:44.0-1ubuntu6.1, 1:45.0-1ubuntu3.1
  • gnome-control-center Ubuntu 20.04 LTS 1:3.36.5-0ubuntu4.1
  • gnome-control-center Ubuntu 22.04 LTS 1:41.7-0ubuntu0.22.04.8
  • gnome-control-center Ubuntu 24.04 LTS 1:45.0-1ubuntu4

ubuntu advisories UBUNTU-CVE-2023-5616

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

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-2023-5616 updated cvss 4.9

gnome-control-center: Remote login misconfiguration in GNOME Control Center

  • Red Hat Enterprise Linux 8 gnome-control-center, gnome-control-center-filesystem Red Hat Enterprise Linux 9 gnome-control-center, gnome-control-center-filesystem Red Hat Enterprise Linux 10 gnome-control-center
    affected: workaround, no fix available “Fix deferred”

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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugs.launchpad.net https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/2039577 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA 3.1 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected products

  • Canonical Ltd. Ubuntu's gnome-control-center

Classification

Weakness
  • CWE-290 Authentication Bypass by Spoofing

References

Sources

Fencer Vulns 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.