CVE-2020-25650

NameCVE-2020-25650
DescriptionA flaw was found in the way the spice-vdagentd daemon handled file transfers from the host system to the virtual machine. Any unprivileged local guest user with access to the UNIX domain socket path `/run/spice-vdagentd/spice-vdagent-sock` could use this flaw to perform a memory denial of service for spice-vdagentd or even other processes in the VM system. The highest threat from this vulnerability is to system availability. This flaw affects spice-vdagent versions 0.20 and previous versions.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2524-1
Debian Bugs973769

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
spice-vdagent (PTS)bullseye0.20.0-2fixed
bookworm0.22.1-3fixed
trixie0.22.1-4.1fixed
forky, sid0.23.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
spice-vdagentsourcestretch0.17.0-1+deb9u1DLA-2524-1
spice-vdagentsource(unstable)0.20.0-2973769

Notes

[buster] - spice-vdagent <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2020/11/04/1
https://gitlab.freedesktop.org/spice/linux/vd_agent/-/commit/1a8b93ca6ac0b690339ab7f0afc6fc45d198d332
https://gitlab.freedesktop.org/spice/linux/vd_agent/-/commit/9d35d8a86fb310fc1f29d428c0a96995948d2357
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