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
bind9.16-dnssec-utils
to version 32:9.16.23-0.7.el8_6.5 or higher.
This issue was patched in RHSA-2024:1647
.
Note: Versions mentioned in the description apply only to the upstream bind9.16-dnssec-utils
package and not the bind9.16-dnssec-utils
package as distributed by RHEL
.
See How to fix?
for RHEL:8
relevant fixed versions and status.
The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.