The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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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.
A flaw was found in libvirt, where it leaked a file descriptor for /dev/mapper/control
into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.