{"schema_version":"1.7.5","id":"CVE-2021-22946","published":"2021-09-29T20:15:08.187Z","modified":"2026-07-08T05:56:53.584753593Z","aliases":["CURL-CVE-2021-22946"],"related":["SUSE-SU-2021:14807-1","SUSE-SU-2021:3297-1","SUSE-SU-2021:3298-1","SUSE-SU-2021:3332-1","SUSE-SU-2021:3351-1","openSUSE-SU-2021:1384-1","openSUSE-SU-2021:3298-1","openSUSE-SU-2024:10582-1"],"details":"A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/curl/curl","events":[{"introduced":"f2f07dad3451d1f63b56d3de0b43160c39d275d7"},{"fixed":"8e82f2a04a238c54ba91e553e9a8452e6d405965"}],"database_specific":{"cpe":"cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"7.20.0"},{"fixed":"7.79.0"}],"source":"CPE_RANGE"}}],"versions":["curl-7_78_0","curl-7_77_0","curl-7_76_1","curl-7_76_0","curl-7_75_0","curl-7_74_0","curl-7_73_0","curl-7_72_0","curl-7_71_1","curl-7_71_0","curl-7_70_0","curl-7_69_1","curl-7_69_0","curl-7_68_0","curl-7_67_0","curl-7_66_0","curl-7_65_3","curl-7_65_2","curl-7_65_1","curl-7_65_0","curl-7_64_1","curl-7_64_0","curl-7_63_0","curl-7_62_0","curl-7_61_1","curl-7_61_0","curl-7_60_0","curl-7_59_0","curl-7_58_0","curl-7_57_0","curl-7_56_1","curl-7_56_0","curl-7_55_1","curl-7_55_0","curl-7_54_1","curl-7_54_0","curl-7_53_1","curl-7_53_0","curl-7_52_1","curl-7_52_0","curl-7_51_0","curl-7_50_3","curl-7_50_2","curl-7_50_1","curl-7_50_0","curl-7_49_1","curl-7_49_0","curl-7_48_0","curl-7_47_1","curl-7_47_0","curl-7_46_0","curl-7_45_0","curl-7_44_0","curl-7_43_0","curl-7_42_0","curl-7_41_0","curl-7_40_0","curl-7_39_0","curl-7_38_0","curl-7_37_1","curl-7_37_0","curl-7_36_0","curl-7_35_0","curl-7_34_0","curl-7_33_0","curl-7_32_0","curl-7_31_0","curl-7_30_0","curl-7_29_0","curl-7_28_1","curl-7_28_0","curl-7_27_0","curl-7_26_0","curl-7_25_0","curl-7_23_1","curl-7_23_0","curl-7_22_0","curl-7_21_7","curl-7_21_6","curl-7_21_5","curl-7_21_4","curl-7_21_3","curl-7_21_2","curl-7_21_1","curl-7_21_0","curl-7_20_1","curl-7_20_0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22946.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/mysql/mysql-server","events":[{"introduced":"0"},{"last_affected":"89713bf41c33528c3e7682d219dc838915f5af9a"},{"introduced":"270fd3411e3d671a73ed9725940a30080f59ce6d"},{"last_affected":"beb865a960b9a8a16cf999c323e46c5b0c67f21f"}],"database_specific":{"cpe":"cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"5.7.0"},{"last_affected":"5.7.35"},{"introduced":"8.0.0"},{"last_affected":"8.0.26"}],"source":"CPE_RANGE"}}],"versions":["mysql-cluster-8.0.26","mysql-8.0.26","mysql-5.7.35","mysql-5.7.32","mysql-5.7.31","mysql-5.1.4","mysql-4.0.4","mysql-4.0.2","mysql-3.23.36","mysql-3.23.33","mysql-3.23.32","mysql-3.23.31","mysql-3.23.30-gamma","mysql-3.23.28-gamma","mysql-3.23.22-beta"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22946.json"}}],"references":[{"type":"ADVISORY","url":"http://seclists.org/fulldisclosure/2022/Mar/29"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/09/msg00022.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202212-01"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20211029-0003/"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20220121-0008/"},{"type":"ADVISORY","url":"https://support.apple.com/kb/HT213183"},{"type":"ADVISORY","url":"https://www.debian.org/security/2022/dsa-5197"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpujan2022.html"},{"type":"FIX","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"},{"type":"FIX","url":"https://hackerone.com/reports/1334111"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpuapr2022.html"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpujul2022.html"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpuoct2021.html"}],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*"],"extracted_events":[{"fixed":"12.3"}],"source":"CPE_RANGE","vendor_product":"apple:macos"},{"cpes":["cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*"],"extracted_events":[{"fixed":"1.0.1.1"}],"source":"CPE_RANGE","vendor_product":"siemens:sinec_infrastructure_network_services"},{"cpes":["cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.2.0"},{"fixed":"8.2.12"},{"introduced":"9.0.0"},{"fixed":"9.0.6"}],"source":"CPE_RANGE","vendor_product":"splunk:universal_forwarder"},{"cpes":["cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"9.0"},{"last_affected":"9.0"},{"introduced":"10.0"},{"last_affected":"10.0"},{"introduced":"11.0"},{"last_affected":"11.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux"},{"cpes":["cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"33"},{"last_affected":"33"},{"introduced":"35"},{"last_affected":"35"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora"},{"cpes":["cpe:2.3:a:oracle:commerce_guided_search:11.3.2:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"11.3.2"},{"last_affected":"11.3.2"}],"source":"CPE_STRING","vendor_product":"oracle:commerce_guided_search"},{"cpes":["cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:1.11.0:*:*:*:*:*:*:*","cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.11.0"},{"last_affected":"1.11.0"},{"introduced":"22.1.3"},{"last_affected":"22.1.3"}],"source":"CPE_STRING","vendor_product":"oracle:communications_cloud_native_core_binding_support_function"},{"cpes":["cpe:2.3:a:oracle:communications_cloud_native_core_console:22.2.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"22.2.0"},{"last_affected":"22.2.0"}],"source":"CPE_STRING","vendor_product":"oracle:communications_cloud_native_core_console"},{"cpes":["cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.10.0"},{"last_affected":"1.10.0"}],"source":"CPE_STRING","vendor_product":"oracle:communications_cloud_native_core_network_function_cloud_native_environment"},{"cpes":["cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.0:*:*:*:*:*:*:*","cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.1:*:*:*:*:*:*:*","cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:22.1.0:*:*:*:*:*:*:*","cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:22.2.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.15.0"},{"last_affected":"1.15.0"},{"introduced":"1.15.1"},{"last_affected":"1.15.1"},{"introduced":"22.1.0"},{"last_affected":"22.1.0"},{"introduced":"22.2.0"},{"last_affected":"22.2.0"}],"source":"CPE_STRING","vendor_product":"oracle:communications_cloud_native_core_network_repository_function"},{"cpes":["cpe:2.3:a:oracle:communications_cloud_native_core_network_slice_selection_function:1.8.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.8.0"},{"last_affected":"1.8.0"}],"source":"CPE_STRING","vendor_product":"oracle:communications_cloud_native_core_network_slice_selection_function"},{"cpes":["cpe:2.3:a:oracle:communications_cloud_native_core_security_edge_protection_proxy:22.1.1:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"22.1.1"},{"last_affected":"22.1.1"}],"source":"CPE_STRING","vendor_product":"oracle:communications_cloud_native_core_security_edge_protection_proxy"},{"cpes":["cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.15.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.15.0"},{"last_affected":"1.15.0"}],"source":"CPE_STRING","vendor_product":"oracle:communications_cloud_native_core_service_communication_proxy"},{"cpes":["cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*","cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*","cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.59:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.57"},{"last_affected":"8.57"},{"introduced":"8.58"},{"last_affected":"8.58"},{"introduced":"8.59"},{"last_affected":"8.59"}],"source":"CPE_STRING","vendor_product":"oracle:peoplesoft_enterprise_peopletools"},{"cpes":["cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"9.1.0"},{"last_affected":"9.1.0"}],"source":"CPE_STRING","vendor_product":"splunk:universal_forwarder"}]},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}