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
dnsmasq-utils
to version 0:2.79-19.el8 or higher.
This issue was patched in RHSA-2021:4153
.
Note: Versions mentioned in the description apply only to the upstream dnsmasq-utils
package and not the dnsmasq-utils
package as distributed by RHEL
.
See How to fix?
for RHEL:8
relevant fixed versions and status.
A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.