CVE-2020-8619
A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer
- State
- Published
- Severity
- 4.9 Medium
- Published
- Jun 17, 2020
- Updated
- Sep 17, 2024
- Reserved
- Feb 5, 2020
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.9 Medium | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H | isc |
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
BIND9ISC |
|
References
- https://kb.isc.org/docs/cve-2020-8619
- FEDORA-2020-54a91444ffvendor-advisory
- https://security.netapp.com/advisory/ntap-20200625-0003/
- FEDORA-2020-5f8da4b260vendor-advisory
- USN-4399-1vendor-advisory
- DSA-4752vendor-advisory
- openSUSE-SU-2020:1699vendor-advisory
- openSUSE-SU-2020:1701vendor-advisory
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