Skip to content
Fencer Intel
high 7.6

CVE-2018-10893 json

Multiple integer overflow and buffer overflow issues were discovered in spice-client's handling of LZ compressed frames.

published 2018-09-11 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-2954

cvss
7.6
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Multiple integer overflow and buffer overflow issues were discovered in spice-client's handling of LZ compressed frames. A malicious server could cause the client to crash or, potentially, execute arbitrary code.

Patch / fix

  • spice-gtk Debian 14, Debian 13, Debian 12 0.37-1

debian advisories DEBIAN-CVE-2018-10893

  • spice-gtk RHEL 6 0.26-8.el6_10.2
  • spice-glib RHEL 6 0.26-8.el6_10.2
  • spice-gtk-tools RHEL 6 0.26-8.el6_10.2
  • spice-gtk-python RHEL 6 0.26-8.el6_10.2
  • spice-gtk RHEL 7 0.35-4.el7
  • libgovirt RHEL 7 0.3.4-3.el7
  • spice-glib RHEL 7 0.35-4.el7
  • spice-gtk3 RHEL 7 0.35-4.el7

red hat advisories RHSA-2020:0471RHSA-2019:2229

  • 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

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-2018-10893 updated cvss 7.6

spice-client: Insufficient encoding checks for LZ can cause different integer/buffer overflows

  • Red Hat Enterprise Linux 6 spice-client
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) spice-gtk 0.35-4.el7, libgovirt 0.3.4-3.el7, spice-glib 0.35-4.el7, spice-gtk3 0.35-4.el7, virt-viewer 5.0-15.el7, spice-vdagent 0.14.0-18.el7 Red Hat Enterprise Linux Client Optional (v. 7) spice-gtk-tools 0.35-4.el7, spice-gtk3-vala 0.35-4.el7
    fixed: vendor fix RHSA-2019:2229
  • Red Hat Enterprise Linux Desktop (v. 6) spice-gtk 0.26-8.el6_10.2, spice-glib 0.26-8.el6_10.2, spice-gtk-python 0.26-8.el6_10.2 Red Hat Enterprise Linux Desktop Optional (v. 6) spice-gtk-tools 0.26-8.el6_10.2 Red Hat Enterprise Linux HPC Node (v. 6) spice-gtk 0.26-8.el6_10.2, spice-glib 0.26-8.el6_10.2, spice-gtk-python 0.26-8.el6_10.2 Red Hat Enterprise Linux HPC Node Optional (v. 6) spice-gtk-tools 0.26-8.el6_10.2 Red Hat Enterprise Linux Server (v. 6) spice-gtk 0.26-8.el6_10.2, spice-glib 0.26-8.el6_10.2, spice-gtk-python 0.26-8.el6_10.2
    fixed: vendor fix RHSA-2020:0471
  • Red Hat Enterprise Linux Server (v. 7) spice-gtk 0.35-4.el7, libgovirt 0.3.4-3.el7, spice-glib 0.35-4.el7, spice-gtk3 0.35-4.el7, virt-viewer 5.0-15.el7, spice-vdagent 0.14.0-18.el7
    fixed: vendor fix RHSA-2019:2229
  • Red Hat Enterprise Linux Server Optional (v. 6) spice-gtk-tools 0.26-8.el6_10.2
    fixed: vendor fix RHSA-2020:0471
  • Red Hat Enterprise Linux Server Optional (v. 7) spice-gtk 0.35-4.el7, spice-glib 0.35-4.el7, spice-gtk3 0.35-4.el7, spice-gtk-tools 0.35-4.el7, spice-gtk3-vala 0.35-4.el7
    fixed: vendor fix RHSA-2019:2229
  • Red Hat Enterprise Linux Workstation (v. 6) spice-gtk 0.26-8.el6_10.2, spice-glib 0.26-8.el6_10.2, spice-gtk-python 0.26-8.el6_10.2
    fixed: vendor fix RHSA-2020:0471
  • Red Hat Enterprise Linux Workstation (v. 7) spice-gtk 0.35-4.el7, libgovirt 0.3.4-3.el7, spice-glib 0.35-4.el7, spice-gtk3 0.35-4.el7, virt-viewer 5.0-15.el7, spice-vdagent 0.14.0-18.el7
    fixed: vendor fix RHSA-2019:2229
show 3 more
  • Red Hat Enterprise Linux Workstation Optional (v. 6) spice-gtk-tools 0.26-8.el6_10.2
    fixed: vendor fix RHSA-2020:0471
  • Red Hat Enterprise Linux Workstation Optional (v. 7) spice-gtk-tools 0.35-4.el7, spice-gtk3-vala 0.35-4.el7
    fixed: vendor fix RHSA-2019:2229
  • 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

2.36% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 7.6 CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
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

  • Red Hat spice-client

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow
  • CWE-190 Integer Overflow or Wraparound

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.