# CVE-2020-14355: libspice-server1: Multiple buffer overflow vulnerabilities were found in the QUIC imagedecoding process of the SPICE remote display sys... CVE-2020-14355 is fixed in 10 products on 1 platform, first by RHSA-2020:4186, released October 6, 2020. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2020-14355 - Priority: Routine - CVSS: 6.6 (Medium) - EPSS: 0.0269 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 6, 2020 ## Description Multiple buffer overflow vulnerabilities were found in the QUIC imagedecoding process of the SPICE remote display system, before spice-0.14.2-1.Both the SPICE client (spice-gtk) and server are affected by these flaws.These flaws allow a malicious client or server to send specially craftedmessages that, when processed by the QUIC image compression algorithm,result in a process crash or potential code execution. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | libspice-server1 Ubuntu 18.04.6 LTS (bionic) | 0.14.0-1ubuntu2.5 | [libspice-server1 0.14.0-1ubuntu2.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libspice-server1-0.14.0-1ubuntu2.5.md) | Oct 6, 2020 | | Linux | libspice-server1 Ubuntu 20.04 LTS (focal) | 0.14.2-4ubuntu3.1 | [libspice-server1 0.14.2-4ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libspice-server1-0.14.2-4ubuntu3.1.md) | Oct 6, 2020 | | Linux | libspice-server1 Ubuntu 24.10 (oracular) | 0.14.3-1ubuntu2 | [libspice-server1 0.14.3-1ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libspice-server1-0.14.3-1ubuntu2.md) | Jan 16, 2026 | | Linux | libspice-server1 Ubuntu 25.04 (plucky) | 0.14.3-1ubuntu2 | [libspice-server1 0.14.3-1ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libspice-server1-0.14.3-1ubuntu2.md) | Jan 16, 2026 | | Linux | spice-glib RHEL 8 | 0:0.37-1.el8_2.2 | [RHSA-2020:4186](https://patchblox.com/security/data/fix/linux/rhsa-2020-4186.md) | Oct 6, 2020 | | Linux | spice-glib ol 8 | 0:0.37-1.el8_2.2 | [ELSA-2020-4186](https://patchblox.com/security/data/fix/linux/elsa-2020-4186.md) | Oct 7, 2020 | | Linux | spice-glib-devel RHEL 8 | 0:0.37-1.el8_2.2 | [RHSA-2020:4186](https://patchblox.com/security/data/fix/linux/rhsa-2020-4186.md) | Oct 6, 2020 | | Linux | spice-glib-devel ol 8 | 0:0.37-1.el8_2.2 | [ELSA-2020-4186](https://patchblox.com/security/data/fix/linux/elsa-2020-4186.md) | Oct 7, 2020 | | Linux | spice-gtk RHEL 8 | 0:0.37-1.el8_2.2 | [RHSA-2020:4186](https://patchblox.com/security/data/fix/linux/rhsa-2020-4186.md) | Oct 6, 2020 | | Linux | spice-gtk ol 8 | 0:0.37-1.el8_2.2 | [ELSA-2020-4186](https://patchblox.com/security/data/fix/linux/elsa-2020-4186.md) | Oct 7, 2020 | | Linux | spice-gtk-tools RHEL 8 | 0:0.37-1.el8_2.2 | [RHSA-2020:4186](https://patchblox.com/security/data/fix/linux/rhsa-2020-4186.md) | Oct 6, 2020 | | Linux | spice-gtk-tools ol 8 | 0:0.37-1.el8_2.2 | [ELSA-2020-4186](https://patchblox.com/security/data/fix/linux/elsa-2020-4186.md) | Oct 7, 2020 | | Linux | spice-gtk3 RHEL 8 | 0:0.37-1.el8_2.2 | [RHSA-2020:4186](https://patchblox.com/security/data/fix/linux/rhsa-2020-4186.md) | Oct 6, 2020 | | Linux | spice-gtk3 ol 8 | 0:0.37-1.el8_2.2 | [ELSA-2020-4186](https://patchblox.com/security/data/fix/linux/elsa-2020-4186.md) | Oct 7, 2020 | | Linux | spice-gtk3-devel RHEL 8 | 0:0.37-1.el8_2.2 | [RHSA-2020:4186](https://patchblox.com/security/data/fix/linux/rhsa-2020-4186.md) | Oct 6, 2020 | | Linux | spice-gtk3-devel ol 8 | 0:0.37-1.el8_2.2 | [ELSA-2020-4186](https://patchblox.com/security/data/fix/linux/elsa-2020-4186.md) | Oct 7, 2020 | | Linux | spice-gtk3-vala RHEL 8 | 0:0.37-1.el8_2.2 | [RHSA-2020:4186](https://patchblox.com/security/data/fix/linux/rhsa-2020-4186.md) | Oct 6, 2020 | | Linux | spice-gtk3-vala ol 8 | 0:0.37-1.el8_2.2 | [ELSA-2020-4186](https://patchblox.com/security/data/fix/linux/elsa-2020-4186.md) | Oct 7, 2020 | | Linux | spice-server RHEL 8 | 0:0.14.2-1.el8_2.1 | [RHSA-2020:4186](https://patchblox.com/security/data/fix/linux/rhsa-2020-4186.md) | Oct 6, 2020 | | Linux | spice-server ol 8 | 0:0.14.2-1.el8_2.1 | [ELSA-2020-4186](https://patchblox.com/security/data/fix/linux/elsa-2020-4186.md) | Oct 7, 2020 | | Linux | spice-server-devel RHEL 8 | 0:0.14.2-1.el8_2.1 | [RHSA-2020:4186](https://patchblox.com/security/data/fix/linux/rhsa-2020-4186.md) | Oct 6, 2020 | | Linux | spice-server-devel ol 8 | 0:0.14.2-1.el8_2.1 | [ELSA-2020-4186](https://patchblox.com/security/data/fix/linux/elsa-2020-4186.md) | Oct 7, 2020 | --- Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.