CVE-2021-22946High· 7.5▾ TwilightA 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` withli…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.9 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
4.5%
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 orCURLOPT_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.
curl >= 7.20.0, < 7.79.0debian_linux = 9.0debian_linux = 10.0debian_linux = 11.0fedora = 33fedora = 35cloud_backupclustered_data_ontaponcommand_insightoncommand_workflow_automationsnapcenterh300s_firmwareh500s_firmwareh700s_firmwareh300e_firmwareh500e_firmwareh700e_firmwareh410s_firmwaresolidfire_baseboard_management_controller_firmwarecommunications_cloud_native_core_binding_support_function = 1.11.0communications_cloud_native_core_network_function_cloud_native_environment = 1.10.0communications_cloud_native_core_network_repository_function = 1.15.0communications_cloud_native_core_network_repository_function = 1.15.1communications_cloud_native_core_network_slice_selection_function = 1.8.0communications_cloud_native_core_service_communication_proxy = 1.15.0mysql_server >= 5.7.0, <= 5.7.35mysql_server >= 8.0.0, <= 8.0.26peoplesoft_enterprise_peopletools = 8.57peoplesoft_enterprise_peopletools = 8.58peoplesoft_enterprise_peopletools = 8.59macos < 12.3sinec_infrastructure_network_services < 1.0.1.1commerce_guided_search = 11.3.2communications_cloud_native_core_binding_support_function = 22.1.3communications_cloud_native_core_console = 22.2.0communications_cloud_native_core_network_repository_function = 22.1.0communications_cloud_native_core_network_repository_function = 22.2.0communications_cloud_native_core_security_edge_protection_proxy = 22.1.1universal_forwarder >= 8.2.0, < 8.2.12universal_forwarder >= 9.0.0, < 9.0.6universal_forwarder = 9.1.0Upgrade past the affected range:
curl 7.79.0macos 12.3sinec_infrastructure_network_services 1.0.1.1universal_forwarder 9.0.6Connected by shared product, vendor, weakness, or advisory.
CVE-2021-22923Medium· 5.3When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl wil…
CVE-2022-30115Medium· 4.3Using its HSTS support, curl can be instructed to use HTTPS directly insteadof using an insecure clear-text HTTP step even when HTTP is provided in theURL
CVE-2021-22947Medium· 5.9When curl >= 7.20.0 and <= 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can respond and send back multiple responses at once that curl caches
CVE-2021-22926High· 7.5libcurl-using applications can ask for a specific client certificate to be used in a transfer
CVE-2021-22925Medium· 5.3curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl
CVE-2021-22922Medium· 6.5When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of diff…