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Fencer Intel
critical 9.8

CVE-2016-0749 json

The smartcard interaction in SPICE allows remote attackers to cause a denial of service (QEMU-KVM process crash) or possibly execute arbitr…

published 2016-06-09 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-0772

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.5%
EPSS 8.5% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

The smartcard interaction in SPICE allows remote attackers to cause a denial of service (QEMU-KVM process crash) or possibly execute arbitrary code via vectors related to connecting to a guest VM, which triggers a heap-based buffer overflow.

Patch / fix

  • spice Debian 14, Debian 13, Debian 12 0.12.6-4.1

debian advisories DEBIAN-CVE-2016-0749

  • spice Ubuntu 14.04 LTS 0.12.4-0nocelt2ubuntu1.3
  • spice Ubuntu 16.04 LTS 0.12.6-4ubuntu0.1

ubuntu advisories UBUNTU-CVE-2016-0749

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 RHEL 7 0.12.4-15.el7_2.1
  • spice-server RHEL 7 0.12.4-15.el7_2.1
  • spice-server RHEL 6 0.12.4-13.el6.1

red hat advisories RHSA-2016:1205RHSA-2016:1204

  • spice SLES for SAP 12, SLES 12, SLED 12 +1 more 0.12.4-8.9.1
  • spice SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 0.12.5-4.1

suse advisories SUSE-SU-2016:1561-1SUSE-SU-2016:1559-1

  • spice openSUSE Tumbleweed 0.12.8-2.1

opensuse advisories openSUSE-SU-2024:10393-1

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-2016-0749 updated cvss 6.8

spice: heap-based memory corruption within smartcard handling

  • Red Hat Enterprise Virtualization 3 rhev-hypervisor
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) spice 0.12.4-15.el7_2.1, spice-server 0.12.4-15.el7_2.1 Red Hat Enterprise Linux Client Optional (v. 7) spice-debuginfo 0.12.4-15.el7_2.1, spice-server-devel 0.12.4-15.el7_2.1 Red Hat Enterprise Linux ComputeNode Optional (v. 7) spice 0.12.4-15.el7_2.1, spice-server 0.12.4-15.el7_2.1
    fixed: vendor fix RHSA-2016:1205
  • Red Hat Enterprise Linux Desktop (v. 6) spice-server 0.12.4-13.el6.1 Red Hat Enterprise Linux Desktop Optional (v. 6) spice-server-devel 0.12.4-13.el6.1, spice-server-debuginfo 0.12.4-13.el6.1 Red Hat Enterprise Linux HPC Node (v. 6) spice-server 0.12.4-13.el6.1 Red Hat Enterprise Linux HPC Node Optional (v. 6) spice-server-devel 0.12.4-13.el6.1, spice-server-debuginfo 0.12.4-13.el6.1 Red Hat Enterprise Linux Server (v. 6) spice-server 0.12.4-13.el6.1
    fixed: vendor fix RHSA-2016:1204
  • Red Hat Enterprise Linux Server (v. 7) spice 0.12.4-15.el7_2.1, spice-server 0.12.4-15.el7_2.1
    fixed: vendor fix RHSA-2016:1205
  • Red Hat Enterprise Linux Server Optional (v. 6) spice-server-devel 0.12.4-13.el6.1, spice-server-debuginfo 0.12.4-13.el6.1
    fixed: vendor fix RHSA-2016:1204
  • Red Hat Enterprise Linux Server Optional (v. 7) spice-debuginfo 0.12.4-15.el7_2.1, spice-server-devel 0.12.4-15.el7_2.1
    fixed: vendor fix RHSA-2016:1205
  • Red Hat Enterprise Linux Workstation (v. 6) spice-server 0.12.4-13.el6.1
    fixed: vendor fix RHSA-2016:1204
  • Red Hat Enterprise Linux Workstation (v. 7) spice 0.12.4-15.el7_2.1, spice-server 0.12.4-15.el7_2.1
    fixed: vendor fix RHSA-2016:1205
show 2 more
  • Red Hat Enterprise Linux Workstation Optional (v. 6) spice-server-devel 0.12.4-13.el6.1, spice-server-debuginfo 0.12.4-13.el6.1
    fixed: vendor fix RHSA-2016:1204
  • Red Hat Enterprise Linux Workstation Optional (v. 7) spice-debuginfo 0.12.4-15.el7_2.1, spice-server-devel 0.12.4-15.el7_2.1
    fixed: vendor fix RHSA-2016:1205

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

8.49% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

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

Classification

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

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.