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Fencer Vulns
critical 9.8

CVE-2017-12194 json

A flaw was found in the way spice-client processed certain messages sent from the server.

published 2018-03-14 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-3769

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.2%
EPSS 5.2% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

A flaw was found in the way spice-client processed certain messages sent from the server. An attacker, having control of malicious spice-server, could use this flaw to crash the client or execute arbitrary code with permissions of the user running the client. spice-gtk versions through 0.34 are believed to be vulnerable.

Patch / fix

  • spice-gtk Debian 14, Debian 13, Debian 12 0.35-1

debian advisories DEBIAN-CVE-2017-12194

  • spice Ubuntu 14.04 LTS 0.12.4-0nocelt2ubuntu1.6
  • spice Ubuntu 18.04 LTS 0.14.0-1ubuntu2.1
  • spice-protocol Ubuntu 16.04 LTS 0.12.10-1ubuntu0.1

ubuntu advisories UBUNTU-CVE-2017-12194

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

  • spice-gtk SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +1 more 0.33-3.3.2

suse advisories SUSE-SU-2018:0877-1

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-2017-12194 updated cvss 5.5

spice-gtk: Integer overflows causing buffer overflows in spice-client

  • Red Hat Enterprise Linux 6 spice-gtk, spice-glib, spice-gtk-tools, spice-gtk-python Red Hat Enterprise Linux 7 spice-gtk, spice-glib, spice-gtk3, spice-gtk-tools, spice-gtk3-vala
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 8 spice-gtk, spice-glib, spice-gtk3, spice-gtk-tools, spice-gtk3-vala
    not affected: vulnerable code not present

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

5.25% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • freedesktop.org spice-gtk

Classification

Weakness
  • CWE-121 Stack-based Buffer Overflow
  • CWE-20 Improper Input Validation

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.