Revision Date: | 2023-06-22 | Version: | 1 |
Title: | CVE-2022-30699 |
Description: |
NLnet Labs Unbound, up to and including version 1.16.1, is vulnerable to a novel type of the "ghost domain names" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a rogue domain name when the cached delegation information is about to expire. The rogue nameserver delays the response so that the cached delegation information is expired. Upon receiving the delayed answer containing the delegation information, Unbound overwrites the now expired entries. This action can be repeated when the delegation information is about to expire making the rogue delegation information ever-updating. From version 1.16.2 on, Unbound stores the start time for a query and uses that to decide if the cached delegation information can be overwritten.
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Family: | unix | Class: | vulnerability |
Status: | | Reference(s): | Mitre CVE-2022-30699 SUSE CVE-2022-30699
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Platform(s): | SUSE Linux Enterprise Desktop 15 SP4 SUSE Linux Enterprise Desktop 15 SP5 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP4 SUSE Linux Enterprise Module for Basesystem 15 SP5 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP2 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.3
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Definition Synopsis |
Release Information SUSE Linux Enterprise Desktop 15 SP4 is installed
OR SUSE Linux Enterprise High Performance Computing 15 SP4 is installed
OR SUSE Linux Enterprise Module for Basesystem 15 SP4 is installed
OR SUSE Linux Enterprise Server 15 SP4 is installed
OR SUSE Linux Enterprise Server for SAP Applications 15 SP4 is installed
OR SUSE Manager Proxy 4.3 is installed
OR SUSE Manager Retail Branch Server 4.3 is installed
OR SUSE Manager Server 4.3 is installed
AND Package Information
libunbound2 is affected
OR unbound-anchor is affected
OR unbound-devel is affected
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Definition Synopsis |
SUSE Linux Enterprise Server for SAP Applications 15 SP2 is installed
AND Package Information
libunbound2 is affected
OR unbound-anchor is affected
OR unbound-devel is affected
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Definition Synopsis |
Release Information
SUSE Linux Enterprise Desktop 15 SP5 is installed
OR SUSE Linux Enterprise High Performance Computing 15 SP5 is installed
OR SUSE Linux Enterprise Module for Basesystem 15 SP5 is installed
OR SUSE Linux Enterprise Server 15 SP5 is installed
OR SUSE Linux Enterprise Server for SAP Applications 15 SP5 is installed
AND Package Information
libunbound2 is affected
OR unbound-anchor is affected
OR unbound-devel is affected
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