CVE-2026-105958
Fixed in a distro release EPSS <1%CVSS 7.5
A flaw was found in spice-server. Multiple migration data handlers use client-supplied offsets from SPICE_MSGC_MIGRATE_DATA messages without bounds validation, allowing a malicious authenticated SPICE client during VM live migration to read arbitrary heap memory or trigger heap corruption via out-of-bounds read and write operations on the message buffer.
Products: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | spice | no fix |
| Debian 13 | spice | no fix |
| Debian 14 | spice | no fix |
| Ubuntu 16.04 LTS | spice | no fix |
| Ubuntu 16.04 LTS | spice-gtk | no fix |
| Ubuntu 16.04 LTS | spice-protocol | no fix |
| Ubuntu 18.04 LTS | spice | no fix |
| Ubuntu 18.04 LTS | spice-gtk | no fix |
| Ubuntu 18.04 LTS | spice-protocol | no fix |
| Ubuntu 20.04 LTS | spice | no fix |
| Ubuntu 20.04 LTS | spice-gtk | no fix |
| Ubuntu 20.04 LTS | spice-protocol | no fix |
| Ubuntu 22.04 LTS | spice | no fix |
| Ubuntu 22.04 LTS | spice-gtk | no fix |
| Ubuntu 22.04 LTS | spice-protocol | no fix |
| Ubuntu 24.04 LTS | spice | no fix |
| Ubuntu 24.04 LTS | spice-gtk | no fix |
| Ubuntu 24.04 LTS | spice-protocol | no fix |
| Ubuntu 26.04 LTS | spice | no fix |
| Ubuntu 26.04 LTS | spice-gtk | no fix |
| Ubuntu 26.04 LTS | spice-protocol | no fix |
| Ubuntu 26.10 | spice | no fix |
| Ubuntu 26.10 | spice-gtk | no fix |
| Ubuntu 26.10 | spice-protocol | no fix |
| Ubuntu Pro 14.04 LTS | spice | no fix |
| openSUSE Tumbleweed | spice | 0.16.0-3.1 |