CVE-2020-25653 Race condition in spice-vdagent

What is CVE-2020-25653?

CVE-2020-25653 is a medium-severity vulnerability in Debian Debian Linux, published on 26 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections. This flaw may allow an unprivileged local guest user to become the active agent for spice-vdagentd, possibly resulting in a denial of service or information leakage from the host. 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.

Weakness: CWE-362

Which versions are affected by CVE-2020-25653?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Spice-Space Spice-Vdagent.

How do I fix CVE-2020-25653?

Upgrade to a fixed version.

Is CVE-2020-25653 being exploited?

There is no known exploitation of CVE-2020-25653 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-7365, DEBIAN-CVE-2020-25653, GHSA-5v7v-8wfp-pqqp, UBUNTU-CVE-2020-25653.