CVE-2020-25651

Severity: medium (CVSS 6.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-11-26 · updated 2026-06-17
Weakness: CWE-362

Description

A flaw was found in the SPICE file transfer protocol. File data from the host system can end up in full or in parts in the client connection of an illegitimate local user in the VM system. Active file transfers from other users could also be interrupted, resulting in a denial of service. The highest threat from this vulnerability is to data confidentiality as well as system availability. This flaw affects spice-vdagent versions 0.20 and prior.

Affected products

Debian Linux: 9.0
Fedoraproject Fedora: 32, 33
Spice-Space Spice-Vdagent: through 0.20.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=1886359
https://lists.debian.org/debian-lts-announce/2021/01/msg00012.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQT56LATVTB2DJOVVJOKQVMVUXYCT2VB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIWJ2EIQXWEA2VDBODEATHAT37X4CREP/
https://www.openwall.com/lists/oss-security/2020/11/04/1
https://bugzilla.redhat.com/show_bug.cgi?id=1886359
https://lists.debian.org/debian-lts-announce/2021/01/msg00012.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQT56LATVTB2DJOVVJOKQVMVUXYCT2VB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIWJ2EIQXWEA2VDBODEATHAT37X4CREP/
https://www.openwall.com/lists/oss-security/2020/11/04/1

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