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Fencer Vulns
high 8.3

CVE-2018-10873 json

A vulnerability was discovered in SPICE before version 0.14.1 where the generated code used for demarshalling messages lacked sufficient bo…

published 2018-08-17 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-2939

cvss
8.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

A vulnerability was discovered in SPICE before version 0.14.1 where the generated code used for demarshalling messages lacked sufficient bounds checks. A malicious client or server, after authentication, could send specially crafted messages to its peer which would result in a crash or, potentially, other impacts.

Patch / fix

  • spice_project spice 0.14.1
  • spice Debian 14, Debian 13, Debian 12 0.14.0-1.1
  • spice-gtk Debian 14, Debian 13, Debian 12 0.35-1

debian advisories DEBIAN-CVE-2018-10873

  • spice Ubuntu 14.04 LTS 0.12.4-0nocelt2ubuntu1.7
  • spice Ubuntu 18.04 LTS 0.14.0-1ubuntu2.2
  • spice-protocol Ubuntu 16.04 LTS 0.12.10-1ubuntu0.2

ubuntu advisories UBUNTU-CVE-2018-10873

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

  • imgbased RHEL 7 1.0.29-1.el7ev
  • python-imgbased RHEL 7 1.0.29-1.el7ev
  • redhat-virtualization-host RHEL 7 4.2-20181026.0.el7_6
  • redhat-release-virtualization-host RHEL 7 4.2-7.3.el7
  • redhat-virtualization-host-image-update RHEL 7 4.2-20181026.0.el7_6
  • redhat-virtualization-host-image-update-placeholder RHEL 7 4.2-7.3.el7
  • spice-gtk RHEL 6 0.26-8.el6_10.1
  • spice-server RHEL 6 0.12.4-16.el6_10.1

red hat advisories RHSA-2018:3470RHSA-2018:2732RHSA-2018:2731

  • spice SLES for SAP 12 SP2, SLES 12 SP2-LTSS, SLES 12 SP2-BCL +1 more 0.12.7-10.9.1
  • spice-gtk SLES for SAP 12 SP2, SLES 12 SP2-LTSS, SLES 12 SP2-BCL +1 more 0.31-9.10.1
  • spice-gtk SLE Module for Server Applications 15, SLE Module for Basesystem 15 0.34-3.3.1
  • spice SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +1 more 0.12.8-6.1
  • spice-gtk SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +1 more 0.33-3.6.1
  • spice SLE Module for Server Applications 15 0.14.0-4.3.1
  • spice SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 0.12.4-15.1
  • spice-gtk SLES 12-LTSS 0.25-5.3.1

suse advisories SUSE-SU-2020:3842-1SUSE-SU-2020:3841-1SUSE-SU-2018:2709-1SUSE-SU-2018:2593-1SUSE-SU-2018:2595-1SUSE-SU-2018:2594-1

  • spice openSUSE Tumbleweed 0.15.0-1.3
  • spice-gtk openSUSE Tumbleweed 0.39-1.8

opensuse advisories openSUSE-SU-2024:11397-1openSUSE-SU-2024:11398-1

  • spice Alpine 3.24, Alpine 3.23, Alpine 3.22 +15 more 0.14.1-r0
  • spice Alpine 3.5 0.12.8-r4
  • spice Alpine 3.6 0.13.3-r3

alpine advisories ALPINE-CVE-2018-10873

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org 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-2018-10873 updated cvss 8.3

spice: Missing check in demarshal.py:write_validate_array_item() allows for buffer overflow and denial of service

  • Red Hat Enterprise Linux Client (v. 7) spice 0.14.0-2.el7_5.5, spice-gtk 0.34-3.el7_5.2, spice-glib 0.34-3.el7_5.2, spice-gtk3 0.34-3.el7_5.2, spice-server 0.14.0-2.el7_5.5 Red Hat Enterprise Linux Client Optional (v. 7) spice-gtk-tools 0.34-3.el7_5.2, spice-gtk3-vala 0.34-3.el7_5.2 Red Hat Enterprise Linux ComputeNode Optional (v. 7) spice 0.14.0-2.el7_5.5, spice-server 0.14.0-2.el7_5.5
    fixed: vendor fix RHSA-2018:2731
  • Red Hat Enterprise Linux Desktop (v. 6) spice-gtk 0.26-8.el6_10.1, spice-glib 0.26-8.el6_10.1, spice-server 0.12.4-16.el6_10.1, spice-gtk-python 0.26-8.el6_10.1 Red Hat Enterprise Linux Desktop Optional (v. 6) spice-gtk-tools 0.26-8.el6_10.1
    fixed: vendor fix RHSA-2018:2732
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) spice-gtk 0.34-3.el7_5.2, spice-glib 0.34-3.el7_5.2, spice-gtk3 0.34-3.el7_5.2 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) spice-gtk 0.34-3.el7_5.2, spice-glib 0.34-3.el7_5.2, spice-gtk3 0.34-3.el7_5.2, spice-gtk-tools 0.34-3.el7_5.2, spice-gtk3-vala 0.34-3.el7_5.2
    fixed: vendor fix RHSA-2018:2731
  • Red Hat Enterprise Linux HPC Node (v. 6) spice-gtk 0.26-8.el6_10.1, spice-glib 0.26-8.el6_10.1, spice-server 0.12.4-16.el6_10.1, spice-gtk-python 0.26-8.el6_10.1 Red Hat Enterprise Linux HPC Node Optional (v. 6) spice-gtk-tools 0.26-8.el6_10.1 Red Hat Enterprise Linux Server (v. 6) spice-gtk 0.26-8.el6_10.1, spice-glib 0.26-8.el6_10.1, spice-server 0.12.4-16.el6_10.1, spice-gtk-python 0.26-8.el6_10.1
    fixed: vendor fix RHSA-2018:2732
  • Red Hat Enterprise Linux Server (v. 7) spice 0.14.0-2.el7_5.5, spice-gtk 0.34-3.el7_5.2, spice-glib 0.34-3.el7_5.2, spice-gtk3 0.34-3.el7_5.2, spice-server 0.14.0-2.el7_5.5
    fixed: vendor fix RHSA-2018:2731
  • Red Hat Enterprise Linux Server Optional (v. 6) spice-gtk-tools 0.26-8.el6_10.1
    fixed: vendor fix RHSA-2018:2732
  • Red Hat Enterprise Linux Server Optional (v. 7) spice-gtk 0.34-3.el7_5.2, spice-glib 0.34-3.el7_5.2, spice-gtk3 0.34-3.el7_5.2, spice-gtk-tools 0.34-3.el7_5.2, spice-gtk3-vala 0.34-3.el7_5.2
    fixed: vendor fix RHSA-2018:2731
  • Red Hat Enterprise Linux Workstation (v. 6) spice-gtk 0.26-8.el6_10.1, spice-glib 0.26-8.el6_10.1, spice-server 0.12.4-16.el6_10.1, spice-gtk-python 0.26-8.el6_10.1
    fixed: vendor fix RHSA-2018:2732
show 5 more
  • Red Hat Enterprise Linux Workstation (v. 7) spice 0.14.0-2.el7_5.5, spice-gtk 0.34-3.el7_5.2, spice-glib 0.34-3.el7_5.2, spice-gtk3 0.34-3.el7_5.2, spice-server 0.14.0-2.el7_5.5
    fixed: vendor fix RHSA-2018:2731
  • Red Hat Enterprise Linux Workstation Optional (v. 6) spice-gtk-tools 0.26-8.el6_10.1
    fixed: vendor fix RHSA-2018:2732
  • Red Hat Enterprise Linux Workstation Optional (v. 7) spice-gtk-tools 0.34-3.el7_5.2, spice-gtk3-vala 0.34-3.el7_5.2
    fixed: vendor fix RHSA-2018:2731
  • Red Hat Virtualization 4 Hypervisor for RHEL 7 redhat-virtualization-host 4.2-20181026.0.el7_6, redhat-virtualization-host-image-update 4.2-20181026.0.el7_6 Red Hat RHEL 7-based RHEV-H for RHEV 4 (build requirements) imgbased 1.0.29-1.el7ev, python-imgbased 1.0.29-1.el7ev, redhat-release-virtualization-host 4.2-7.3.el7, redhat-virtualization-host-image-update-placeholder 4.2-7.3.el7
    fixed: vendor fix RHSA-2018:3470
  • Red Hat Enterprise Linux 5 qspice Red Hat Enterprise Linux 8 spice, spice-server
    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

3.93% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 8.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • [UNKNOWN] spice:

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • 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.