CVE catalog

CVE-2021-20201

spice: CVE-2021-20201

Severity: Medium · CVSS 6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Published: May 18, 2021, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 2.70% · Oct 25, 2026

A flaw was found in spice in versions before 0.14.92. A DoS tool might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	spice	sid	`0.16.0-3`	fixed
Debian	spice	forky	`0.16.0-3`	fixed
Debian	spice	trixie	`0.15.2-1`	fixed
Debian	spice	bookworm	`0.15.1-1`	fixed
Alpine	spice	3.10	`0.14.2-r1`	fixed
Alpine	spice	3.11	`0.14.2-r2`	fixed
Alpine	spice	3.12	`0.14.3-r1`	fixed
Alpine	spice	3.13	`0.14.3-r1`	fixed
Alpine	spice	3.14	`0.14.3-r1`	fixed
Alpine	spice	3.15	`0.14.3-r1`	fixed
Alpine	spice	3.16	`0.14.3-r1`	fixed
Alpine	spice	3.17	`0.14.3-r1`	fixed
Alpine	spice	3.18	`0.14.3-r1`	fixed
Alpine	spice	3.19	`0.14.3-r1`	fixed
Alpine	spice	3.20	`0.14.3-r1`	fixed
Alpine	spice	3.21	`0.14.3-r1`	fixed
Alpine	spice	3.22	`0.14.3-r1`	fixed
Alpine	spice	3.23	`0.14.3-r1`	fixed
Alpine	spice	3.24	`0.14.3-r1`	fixed
Ubuntu	spice	pro	`0.12.4-0nocelt1`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt1.1`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt1.1ubuntu1`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt2`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt2ubuntu1`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt2ubuntu1.1`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt2ubuntu1.2`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt2ubuntu1.3`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt2ubuntu1.4`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt2ubuntu1.5`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt2ubuntu1.6`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt2ubuntu1.7`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt2ubuntu1.8`	vulnerable
Ubuntu	spice	pro	`0.12.4-0nocelt2ubuntu1.8+esm1`	vulnerable
Ubuntu	spice	16.04	`0.12.5-1.1ubuntu2`	vulnerable
Ubuntu	spice	16.04	`0.12.6-4`	vulnerable
Ubuntu	spice	16.04	`0.12.6-4ubuntu0.1`	vulnerable
Ubuntu	spice	16.04	`0.12.6-4ubuntu0.2`	vulnerable
Ubuntu	spice	16.04	`0.12.6-4ubuntu0.3`	vulnerable
Ubuntu	spice	16.04	`0.12.6-4ubuntu0.4`	vulnerable
Ubuntu	spice	16.04	`0.12.6-4ubuntu0.5`	vulnerable
Ubuntu	spice	18.04	`0.12.8-2.2`	vulnerable
Ubuntu	spice	18.04	`0.14.0-1`	vulnerable
Ubuntu	spice	18.04	`0.14.0-1ubuntu1`	vulnerable
Ubuntu	spice	18.04	`0.14.0-1ubuntu2`	vulnerable
Ubuntu	spice	18.04	`0.14.0-1ubuntu2.1`	vulnerable
Ubuntu	spice	18.04	`0.14.0-1ubuntu2.2`	vulnerable
Ubuntu	spice	18.04	`0.14.0-1ubuntu2.4`	vulnerable
Ubuntu	spice	18.04	`0.14.0-1ubuntu2.5`	vulnerable
Ubuntu	spice	20.04	`0.14.2-0ubuntu2`	vulnerable
Ubuntu	spice	20.04	`0.14.2-4ubuntu1`	vulnerable
Ubuntu	spice	20.04	`0.14.2-4ubuntu2`	vulnerable
Ubuntu	spice	20.04	`0.14.2-4ubuntu3`	vulnerable
Ubuntu	spice	20.04	`0.14.2-4ubuntu3.1`	vulnerable
Suse	spice	hpe helion openstack 8	`0.12.8-18.1`	fixed
Suse	spice	openstack cloud 8	`0.12.8-18.1`	fixed
Suse	spice	openstack cloud 9	`0.12.8-18.1`	fixed
Suse	spice	openstack cloud crowbar 8	`0.12.8-18.1`	fixed
Suse	spice	openstack cloud crowbar 9	`0.12.8-18.1`	fixed
Suse	spice	linux enterprise server for sap applications 12 sp3	`0.12.8-18.1`	fixed
Suse	spice	linux enterprise server for sap applications 12 sp4	`0.12.8-18.1`	fixed
Suse	spice	linux enterprise software development kit 12 sp5	`0.12.8-18.1`	fixed
Suse	spice	linux enterprise server 12 sp3-ltss	`0.12.8-18.1`	fixed
Suse	spice	linux enterprise server 12 sp3-bcl	`0.12.8-18.1`	fixed
Suse	spice	linux enterprise server 12 sp4-ltss	`0.12.8-18.1`	fixed
Suse	spice	linux enterprise server 12 sp5	`0.12.8-18.1`	fixed
Suse	spice	linux enterprise server for sap applications 12 sp5	`0.12.8-18.1`	fixed
Opensuse	spice	tumbleweed	`0.15.2-2.1`	fixed
Opensuse	spice	leap micro 5.2	`0.14.3-150300.3.3.1`	fixed
Suse	spice	linux enterprise module for server applications 15 sp2	`0.14.2-3.6.1`	fixed
Suse	spice	linux enterprise micro 5.0	`0.14.2-3.6.1`	fixed
Opensuse	spice-gtk	tumbleweed	`0.41-3.1`	fixed
Opensuse	spice	leap 15.2	`0.14.2-lp152.2.6.1`	fixed
Suse	spice	linux enterprise module for server applications 15 sp3	`0.14.3-150300.3.3.1`	fixed
Suse	spice	linux enterprise micro 5.2	`0.14.3-150300.3.3.1`	fixed
Opensuse	spice	leap 15.3	`0.14.3-150300.3.3.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	spice	source	sid	`0.14.3-2.1`	not yet assigned	Not reported	[983698]
Debian	spice	source	forky	`0.14.3-2.1`	not yet assigned	Not reported	[983698]
Debian	spice	source	trixie	`0.14.3-2.1`	not yet assigned	Not reported	[983698]
Debian	spice	source	bookworm	`0.14.3-2.1`	not yet assigned	Not reported	[983698]
Alpine	spice	apk	3.10	`0.14.2-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.11	`0.14.2-r2`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.12	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.13	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.14	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.15	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.16	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.17	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.18	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.19	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.20	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.21	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.22	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.23	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Alpine	spice	apk	3.24	`0.14.3-r1`	Not reported	ALPINE-CVE-2021-20201	Not reported
Suse	spice	rpm	hpe helion openstack 8	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	openstack cloud 8	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	openstack cloud 9	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	openstack cloud crowbar 8	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	openstack cloud crowbar 9	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	linux enterprise server for sap applications 12 sp3	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	linux enterprise server for sap applications 12 sp4	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	linux enterprise software development kit 12 sp5	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	linux enterprise server 12 sp3-ltss	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	linux enterprise server 12 sp3-bcl	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	linux enterprise server 12 sp4-ltss	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	linux enterprise server 12 sp5	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Suse	spice	rpm	linux enterprise server for sap applications 12 sp5	`0.12.8-18.1`	Not reported	SUSE-SU-2021:1906-1	Not reported
Opensuse	spice	rpm	tumbleweed	`0.15.2-2.1`	Not reported	OPENSUSE-SU-2024:13045-1	Not reported
Opensuse	spice	rpm	leap micro 5.2	`0.14.3-150300.3.3.1`	Not reported	SUSE-SU-2022:2881-2	Not reported
Suse	spice	rpm	linux enterprise module for server applications 15 sp2	`0.14.2-3.6.1`	Not reported	SUSE-SU-2021:1927-1	Not reported
Suse	spice	rpm	linux enterprise micro 5.0	`0.14.2-3.6.1`	Not reported	SUSE-SU-2021:1927-1	Not reported
Opensuse	spice-gtk	rpm	tumbleweed	`0.41-3.1`	Not reported	OPENSUSE-SU-2024:12406-1	Not reported
Opensuse	spice	rpm	leap 15.2	`0.14.2-lp152.2.6.1`	Not reported	OPENSUSE-SU-2021:0874-1	Not reported
Suse	spice	rpm	linux enterprise module for server applications 15 sp3	`0.14.3-150300.3.3.1`	Not reported	SUSE-SU-2022:2881-1	Not reported
Suse	spice	rpm	linux enterprise micro 5.2	`0.14.3-150300.3.3.1`	Not reported	SUSE-SU-2022:2881-1	Not reported
Opensuse	spice	rpm	leap 15.3	`0.14.3-150300.3.3.1`	Not reported	SUSE-SU-2022:2881-1	Not reported

[Debian bug #983698]

OpenFactory catalog packages

[openSUSE Tumbleweed]

[libspice-client-glib-2_0-8]Unknown
Source package: [spice-gtk]
Details (1)
- 0.43-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 0.41-3.1
  Version impact unknown
  dsa · spice-gtk · opensuse · tumbleweed
[libspice-client-glib-helper]Unknown
Source package: [spice-gtk]
Details (1)
- 0.43-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 0.41-3.1
  Version impact unknown
  dsa · spice-gtk · opensuse · tumbleweed
[libspice-client-gtk-3_0-5]Unknown
Source package: [spice-gtk]
Details (1)
- 0.43-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 0.41-3.1
  Version impact unknown
  dsa · spice-gtk · opensuse · tumbleweed
[libspice-server1]Unknown
Source package: [spice]
Details (1)
- 0.16.0-1.5 · x86_64 · tumbleweed
  Unknown · Fixed: 0.15.2-2.1
  Version impact unknown
  dsa · spice · opensuse · tumbleweed
[libspice-server-devel]Unknown
Source package: [spice]
Details (1)
- 0.16.0-1.5 · x86_64 · tumbleweed
  Unknown · Fixed: 0.15.2-2.1
  Version impact unknown
  dsa · spice · opensuse · tumbleweed
[spice-gtk-devel]Unknown
Source package: [spice-gtk]
Details (1)
- 0.43-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 0.41-3.1
  Version impact unknown
  dsa · spice-gtk · opensuse · tumbleweed
[spice-gtk-lang]Unknown
Source package: [spice-gtk]
Details (1)
- 0.43-1.1 · noarch · tumbleweed
  Unknown · Fixed: 0.41-3.1
  Version impact unknown
  dsa · spice-gtk · opensuse · tumbleweed
[typelib-1_0-SpiceClientGlib-2_0]Unknown
Source package: [spice-gtk]
Details (1)
- 0.43-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 0.41-3.1
  Version impact unknown
  dsa · spice-gtk · opensuse · tumbleweed
[typelib-1_0-SpiceClientGtk-3_0]Unknown
Source package: [spice-gtk]
Details (1)
- 0.43-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 0.41-3.1
  Version impact unknown
  dsa · spice-gtk · opensuse · tumbleweed
[spice-gtk]Fixed
Source package: [spice-gtk]
Details (1)
- 0.43-1.1 · x86_64 · tumbleweed
  Fixed · Fixed: 0.41-3.1
  dsa · spice-gtk · opensuse · tumbleweed

[Debian 12 (Bookworm)]

[libspice-server1]Fixed
Source package: [spice]
Details (2)
- 0.15.1-1 · amd64 · bookworm
  Fixed · Fixed: 0.14.3-2.1
  dsa · spice · debian · bookworm; dsa · spice · debian · 12
- 0.15.1-1 · arm64 · bookworm
  Fixed · Fixed: 0.14.3-2.1
  dsa · spice · debian · bookworm; dsa · spice · debian · 12
[libspice-server-dev]Fixed
Source package: [spice]
Details (2)
- 0.15.1-1 · amd64 · bookworm
  Fixed · Fixed: 0.14.3-2.1
  dsa · spice · debian · bookworm; dsa · spice · debian · 12
- 0.15.1-1 · arm64 · bookworm
  Fixed · Fixed: 0.14.3-2.1
  dsa · spice · debian · bookworm; dsa · spice · debian · 12

[Debian 13 (Trixie)]

[libspice-server1]Fixed
Source package: [spice]
Details (2)
- 0.15.2-1+b1 · amd64 · trixie
  Fixed · Fixed: 0.14.3-2.1
  dsa · spice · debian · 13
- 0.15.2-1+b1 · arm64 · trixie
  Fixed · Fixed: 0.14.3-2.1
  dsa · spice · debian · 13
[libspice-server-dev]Fixed
Source package: [spice]
Details (2)
- 0.15.2-1+b1 · amd64 · trixie
  Fixed · Fixed: 0.14.3-2.1
  dsa · spice · debian · 13
- 0.15.2-1+b1 · arm64 · trixie
  Fixed · Fixed: 0.14.3-2.1
  dsa · spice · debian · 13

Observed: Oct 23, 2026, 5:54:10 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]