vulnerability
Ubuntu: (Multiple Advisories) (CVE-2023-50387): Bind vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Feb 13, 2024 | Feb 14, 2024 | Jan 30, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Feb 13, 2024
Added
Feb 14, 2024
Modified
Jan 30, 2025
Description
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
Solution(s)
ubuntu-pro-upgrade-bind9ubuntu-pro-upgrade-dnsmasq-baseubuntu-pro-upgrade-libunbound8ubuntu-pro-upgrade-unbound
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