Integer Overflow or Wraparound Affecting spice-server-devel package, versions <0:0.14.0-10.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.48% (42nd percentile)

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  • Snyk IDSNYK-AMZN2-SPICESERVERDEVEL-21697142
  • published25 Oct 2026
  • disclosed16 Oct 2026

Introduced: 16 Oct 2026

NewCVE-2026-105959  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 spice-server-devel to version 0:0.14.0-10.amzn2 or higher.
This issue was patched in ALAS2-2026-4030.

NVD Description

Note: Versions mentioned in the description apply only to the upstream spice-server-devel package and not the spice-server-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A flaw was found in spice-server. The GLZ encoder dictionary restore path truncates a size_t allocation size to int when calling the malloc callback, allowing a malicious authenticated SPICE client during VM live migration to trigger a massive heap buffer overflow by sending a crafted max_encoders value in migration data.

CVSS Base Scores

version 3.1