CVE-2021-3672

A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.

Link	Resource
https://c-ares.haxx.se/adv_20210810.html	Exploit Patch
https://bugzilla.redhat.com/show_bug.cgi?id=1988342	Issue Tracking Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf	Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html	Third Party Advisory

Configuration 1

cpe:2.3:a:c-ares_project:c-ares:*:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:7.7:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_tus:8.4:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.2:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.1:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.1:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_computer_node:1:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_workstation:1:*:*:*:*:*:*:* cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:* cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:*

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Published : 2021-11-23 07:15

Updated : 2022-10-18 02:57

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NVD link : CVE-2021-3672

Mitre link : CVE-2021-3672

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CWE-79