Skip to content
Fencer Intel
high 7.5

CVE-2016-9577 json

A vulnerability was discovered in SPICE before 0.13.90 in the server's protocol handling.

published 2018-07-27 8 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10383

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.8%
EPSS 3.8% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

A vulnerability was discovered in SPICE before 0.13.90 in the server's protocol handling. An authenticated attacker could send crafted messages to the SPICE server causing a heap overflow leading to a crash or possible code execution.

Patch / fix

  • spice_project spice 0.13.90
  • spice Debian 14, Debian 13, Debian 12 0.12.8-2.1

debian advisories DEBIAN-CVE-2016-9577

  • spice Ubuntu 14.04 LTS 0.12.4-0nocelt2ubuntu1.4
  • spice Ubuntu 16.04 LTS 0.12.6-4ubuntu0.2

ubuntu advisories UBUNTU-CVE-2016-9577

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-server RHEL 6 0.12.4-13.el6_8.2
  • spice RHEL 7 0.12.4-20.el7_3
  • spice-server RHEL 7 0.12.4-20.el7_3
  • redhat-virtualization-host RHEL 7 4.0-20170307.1.el7_3
  • imgbased RHEL 7 0.8.16-0.1.el7ev
  • redhat-release-virtualization-host RHEL 7 4.0-7.1.el7
  • redhat-virtualization-host-image-update RHEL 7 4.0-20170307.1.el7_3
  • redhat-virtualization-host-image-update-placeholder RHEL 7 4.0-7.1.el7

red hat advisories RHSA-2017:0253RHSA-2017:0254RHSA-2017:0549RHSA-2017:0552

  • spice SLES for SAP 12 SP2, SLES 12 SP2, SLED 12 SP2 +1 more 0.12.7-8.1
  • spice SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 0.12.5-7.1
  • spice SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 0.12.4-8.1
  • spice SLES for SAP 12, SLES 12-LTSS 0.12.4-8.12.1

suse advisories SUSE-SU-2017:0392-1SUSE-SU-2017:0393-1SUSE-SU-2017:0400-1SUSE-SU-2017:0396-1

  • spice openSUSE Tumbleweed 0.15.0-1.3

opensuse advisories openSUSE-SU-2024:11397-1

  • spice Alpine 3.24, Alpine 3.23, Alpine 3.22 +15 more 0.12.8-r3

alpine advisories ALPINE-CVE-2016-9577

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-2016-9577 updated cvss 7.5

spice: Buffer overflow in main_channel_alloc_msg_rcv_buf when reading large messages

  • Red Hat Virtualization 4 distribution
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) spice 0.12.4-20.el7_3, spice-server 0.12.4-20.el7_3 Red Hat Enterprise Linux Client Optional (v. 7) spice-debuginfo 0.12.4-20.el7_3, spice-server-devel 0.12.4-20.el7_3 Red Hat Enterprise Linux ComputeNode Optional (v. 7) spice 0.12.4-20.el7_3, spice-server 0.12.4-20.el7_3
    fixed: vendor fix RHSA-2017:0254
  • Red Hat Enterprise Linux Desktop (v. 6) spice-server 0.12.4-13.el6_8.2 Red Hat Enterprise Linux Desktop Optional (v. 6) spice-server-devel 0.12.4-13.el6_8.2, spice-server-debuginfo 0.12.4-13.el6_8.2 Red Hat Enterprise Linux HPC Node (v. 6) spice-server 0.12.4-13.el6_8.2 Red Hat Enterprise Linux HPC Node Optional (v. 6) spice-server-devel 0.12.4-13.el6_8.2, spice-server-debuginfo 0.12.4-13.el6_8.2 Red Hat Enterprise Linux Server (v. 6) spice-server 0.12.4-13.el6_8.2
    fixed: vendor fix RHSA-2017:0253
  • Red Hat Enterprise Linux Server (v. 7) spice 0.12.4-20.el7_3, spice-server 0.12.4-20.el7_3
    fixed: vendor fix RHSA-2017:0254
  • Red Hat Enterprise Linux Server Optional (v. 6) spice-server-devel 0.12.4-13.el6_8.2, spice-server-debuginfo 0.12.4-13.el6_8.2
    fixed: vendor fix RHSA-2017:0253
  • Red Hat Enterprise Linux Server Optional (v. 7) spice-debuginfo 0.12.4-20.el7_3, spice-server-devel 0.12.4-20.el7_3
    fixed: vendor fix RHSA-2017:0254
  • Red Hat Enterprise Linux Workstation (v. 6) spice-server 0.12.4-13.el6_8.2
    fixed: vendor fix RHSA-2017:0253
  • Red Hat Enterprise Linux Workstation (v. 7) spice 0.12.4-20.el7_3, spice-server 0.12.4-20.el7_3
    fixed: vendor fix RHSA-2017:0254
show 5 more
  • Red Hat Enterprise Linux Workstation Optional (v. 6) spice-server-devel 0.12.4-13.el6_8.2, spice-server-debuginfo 0.12.4-13.el6_8.2
    fixed: vendor fix RHSA-2017:0253
  • Red Hat Enterprise Linux Workstation Optional (v. 7) spice-debuginfo 0.12.4-20.el7_3, spice-server-devel 0.12.4-20.el7_3
    fixed: vendor fix RHSA-2017:0254
  • Red Hat Virtualization 4 Hypervisor for RHEL 7 redhat-virtualization-host 4.0-20170307.1.el7_3, redhat-virtualization-host-image-update 4.0-20170307.1.el7_3
    fixed: vendor fix RHSA-2017:0549
  • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts rhevm-appliance 4.0.20170307.0-1.el7ev
    fixed: vendor fix RHSA-2017:0552
  • Red Hat RHEL 7-based RHEV-H for RHEV 4 (build requirements) imgbased 0.8.16-0.1.el7ev, redhat-release-virtualization-host 4.0-7.1.el7, redhat-virtualization-host-image-update-placeholder 4.0-7.1.el7
    fixed: vendor fix RHSA-2017:0549

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

3.79% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/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

  • Red Hat spice

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-122 Heap-based Buffer Overflow
  • 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.