CVE-2020-14355

spice: multiple buffer overflow vulnerabilities in QUIC decoding code

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Severity

Important

Red Hat Product Security

6.6

CVSS 3.1

Review impact separately from score.

Published · October 6, 2020

Updated · March 4, 2026

Description

Multiple buffer overflow vulnerabilities were found in the QUIC image decoding process of the SPICE remote display system. Both the SPICE client (spice-gtk) and server are affected by these flaws. These flaws allow a malicious client or server to send specially crafted messages that, when processed by the QUIC image compression algorithm, result in a process crash or potential code execution.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.6
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')