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Test your applicationsUpgrade RHEL:8
virt:rhel/lua-guestfs
to version 1:1.40.2-25.module+el8.3.0+7421+642fe24f or higher.
This issue was patched in RHSA-2020:4676
.
Note: Versions mentioned in the description apply only to the upstream virt:rhel/lua-guestfs
package and not the virt:rhel/lua-guestfs
package as distributed by RHEL
.
See How to fix?
for RHEL:8
relevant fixed versions and status.
qemu/qemu_driver.c in libvirt before 6.0.0 mishandles the holding of a monitor job during a query to a guest agent, which allows attackers to cause a denial of service (API blockage).