What’s Vulnerable › Vulnerabilities
CVE-2020-8619: A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer
- Severity: medium (CVSS 4.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-06-17 · updated 2026-09-01
- Weakness: CWE-404
Description
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.
Affected products
- Canonical Ubuntu Linux: 20.04
- Debian Linux: 10.0
- Fedoraproject Fedora: 31, 32
- ISC BIND: from 9.11.14 through 9.11.19; from 9.11.14-s1 through 9.11.19-s1; from 9.14.9 through 9.14.12; from 9.16.0 through 9.16.3
- NetApp Steelstore Cloud Integrated Storage: all versions
- openSUSE Leap: 15.1, 15.2
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
- https://kb.isc.org/docs/cve-2020-8619
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNFTTYJ5JJJJ6QG3AHXJGDIIEYMDFWFW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EIOXMJX4N3LBKC65OXNBE52W4GAS7QEX/
- https://security.netapp.com/advisory/ntap-20200625-0003/
- https://usn.ubuntu.com/4399-1/
- https://www.debian.org/security/2020/dsa-4752
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
- https://kb.isc.org/docs/cve-2020-8619
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNFTTYJ5JJJJ6QG3AHXJGDIIEYMDFWFW/
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