A spice-vdagent security update has been released for Fedora 33.

SECURITY: Fedora 33 Update: spice-vdagent-0.21.0-1.fc33

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Fedora Update Notification
FEDORA-2021-09ce0cdfac
2021-02-12 01:40:32.524553
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Name : spice-vdagent
Product : Fedora 33
Version : 0.21.0
Release : 1.fc33
URL :   https://spice-space.org/
Summary : Agent for Spice guests
Description :
Spice agent for Linux guests offering the following features:

Features:
* Client mouse mode (no need to grab mouse by client, no mouse lag)
this is handled by the daemon by feeding mouse events into the kernel
via uinput. This will only work if the active X-session is running a
spice-vdagent process so that its resolution can be determined.
* Automatic adjustment of the X-session resolution to the client resolution
* Support of copy and paste (text and images) between the active X-session
and the client

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Update Information:

Update to spice-vdagent 0.21.0: security fixes: CVE-2020-25650, CVE-2020-25651,
CVE-2020-25652, CVE-2020-25653
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ChangeLog:

* Mon Feb 8 2021 Victor Toso 0.21.0-1
- Update to spice-vdagent 0.21.0
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References:

[ 1 ] Bug #1886345 - CVE-2020-25650 spice-vdagent: memory DoS via arbitrary entries in `active_xfers` hash table
  https://bugzilla.redhat.com/show_bug.cgi?id=1886345
[ 2 ] Bug #1886359 - CVE-2020-25651 spice-vdagent: possible file transfer DoS and information leak via `active_xfers` hash map
  https://bugzilla.redhat.com/show_bug.cgi?id=1886359
[ 3 ] Bug #1886366 - CVE-2020-25652 spice-vdagent: possibility to exhaust file descriptors in `vdagentd`
  https://bugzilla.redhat.com/show_bug.cgi?id=1886366
[ 4 ] Bug #1886372 - CVE-2020-25653 spice-vdagent: UNIX domain socket peer PID retrieved via `SO_PEERCRED` is subject to race condition
  https://bugzilla.redhat.com/show_bug.cgi?id=1886372
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-09ce0cdfac' at the command
line. For more information, refer to the dnf documentation available at
  http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
  https://fedoraproject.org/keys