vulnerability
Oracle Linux: CVE-2023-50387: ELSA-2024-0965: unbound security update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Feb 13, 2024 | Feb 28, 2024 | Dec 3, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Feb 13, 2024
Added
Feb 28, 2024
Modified
Dec 3, 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.
Processing specially crafted responses coming from DNSSEC-signed zones can lead to uncontrolled CPU usage, leading to a Denial of Service in the DNSSEC-validating resolver side.
This vulnerability applies only for systems where DNSSEC validation is enabled.
Processing specially crafted responses coming from DNSSEC-signed zones can lead to uncontrolled CPU usage, leading to a Denial of Service in the DNSSEC-validating resolver side.
This vulnerability applies only for systems where DNSSEC validation is enabled.
Solutions
oracle-linux-upgrade-bindoracle-linux-upgrade-bind9-16oracle-linux-upgrade-bind9-16-chrootoracle-linux-upgrade-bind9-16-develoracle-linux-upgrade-bind9-16-dnssec-utilsoracle-linux-upgrade-bind9-16-docoracle-linux-upgrade-bind9-16-libsoracle-linux-upgrade-bind9-16-licenseoracle-linux-upgrade-bind9-16-utilsoracle-linux-upgrade-bind-chrootoracle-linux-upgrade-bind-develoracle-linux-upgrade-bind-dnssec-docoracle-linux-upgrade-bind-dnssec-utilsoracle-linux-upgrade-bind-docoracle-linux-upgrade-bind-dyndb-ldaporacle-linux-upgrade-bind-export-develoracle-linux-upgrade-bind-export-libsoracle-linux-upgrade-bind-libsoracle-linux-upgrade-bind-libs-liteoracle-linux-upgrade-bind-licenseoracle-linux-upgrade-bind-lite-develoracle-linux-upgrade-bind-pkcs11oracle-linux-upgrade-bind-pkcs11-develoracle-linux-upgrade-bind-pkcs11-libsoracle-linux-upgrade-bind-pkcs11-utilsoracle-linux-upgrade-bind-sdboracle-linux-upgrade-bind-sdb-chrootoracle-linux-upgrade-bind-utilsoracle-linux-upgrade-dhclientoracle-linux-upgrade-dhcporacle-linux-upgrade-dhcp-clientoracle-linux-upgrade-dhcp-commonoracle-linux-upgrade-dhcp-develoracle-linux-upgrade-dhcp-libsoracle-linux-upgrade-dhcp-relayoracle-linux-upgrade-dhcp-serveroracle-linux-upgrade-dnsmasqoracle-linux-upgrade-dnsmasq-utilsoracle-linux-upgrade-python3-bindoracle-linux-upgrade-python3-bind9-16oracle-linux-upgrade-python3-unboundoracle-linux-upgrade-unboundoracle-linux-upgrade-unbound-develoracle-linux-upgrade-unbound-libsoracle-linux-upgrade-unbound-python
References
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