An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020:2414. Vulnerable versions of Unbound could still amplify an incoming query into a large number of queries directed to a target, even with a lower amplification ratio compared to versions of Unbound that shipped before the mentioned erratum. This issue is about the incomplete fix for CVE-2020-12662, and it does not affect upstream versions of Unbound.

CNA Affected

[
  {
    "product": "unbound",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "unbound-1.6.6-5.el7_8"
      }
    ]
  }
]