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
bind-libs
to version 32:9.11.4-26.P2.el8_1.3 or higher.
This issue was patched in RHSA-2020:2345
.
Note: Versions mentioned in the description apply only to the upstream bind-libs
package and not the bind-libs
package as distributed by RHEL
.
See How to fix?
for RHEL:8
relevant fixed versions and status.
A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches in an attempt to process the referral. This has at least two potential effects: The performance of the recursing server can potentially be degraded by the additional work required to perform these fetches, and The attacker can exploit this behavior to use the recursing server as a reflector in a reflection attack with a high amplification factor.