CVE-2020-8619A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer

Beschreibung

In ISC BIND9 versions BIND 9.11.14 -> 9.11.19, BIND 9.14.9 -> 9.14.12, BIND 9.16.0 -> 9.16.3, BIND Supported Preview Edition 9.11.14-S1 -> 9.11.19-S1: Unless a nameserver is providing authoritative service for one or more zones and at least one zone contains an empty non-terminal entry containing an asterisk ("*") character, this defect cannot be encountered. A would-be attacker who is allowed to change zone content could theoretically introduce such a record in order to exploit this condition to cause denial of service, though we consider the use of this vector unlikely because any such attack would require a significant privilege level and be easily traceable.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• https://kb.isc.org/docs/cve-2020-8619
• FEDORA-2020-54a91444ff vendor-advisory
• https://security.netapp.com/advisory/ntap-20200625-0003/
• FEDORA-2020-5f8da4b260 vendor-advisory
• USN-4399-1 vendor-advisory
• DSA-4752 vendor-advisory
• openSUSE-SU-2020:1699 vendor-advisory
• openSUSE-SU-2020:1701 vendor-advisory