CVE-2021-22947Medium· 5.9▾ TwilightPoC availableWhen 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. curl would then upgrade to…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 32.5 · likelihood 0.6 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 14.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
3.0%
Exploit / PoC code exists
When 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. curl would then upgrade to TLS but not flush the in-queue of cached responses but instead continue using and trustingthe responses it got before the TLS handshake as if they were authenticated.Using this flaw, it allows a Man-In-The-Middle attacker to first inject the fake responses, then pass-through the TLS traffic from the legitimate server and trick curl into sending data back to the user thinking the attacker's injected data comes from the TLS-protected server.
curl >= 7.20.0, < 7.79.0fedora = 33fedora = 35debian_linux = 9.0debian_linux = 10.0debian_linux = 11.0cloud_backupclustered_data_ontaph300s_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 = 8.59sinec_infrastructure_network_services < 1.0.1.1macos < 12.3commerce_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 = 22.1.2communications_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 7.79.0sinec_infrastructure_network_services 1.0.1.1macos 12.3universal_forwarder 9.0.6Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2022-35260Medium· 6.5curl can be told to parse a `.netrc` file for credentials
CVE-2022-35252Low· 3.7When curl is used to retrieve and parse cookies from a HTTP(S) server, itaccepts cookies using control codes that when later are sent back to a HTTPserver might make the server return 400 responses
CVE-2022-32221Critical· 9.8When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when the `CURLOPT_POSTFIELDS` option has been set, if the same handle previously was used to issue a `PU…
CVE-2022-32207Critical· 9.8When curl < 7.84.0 saves cookies, alt-svc and hsts data to local files, it makes the operation atomic by finalizing the operation with a rename from a temporary name to the final target file name.In that rename operation, it might accide…
CVE-2022-32208Medium· 5.9When curl < 7.84.0 does FTP transfers secured by krb5, it handles message verification failures wrongly
CVE-2022-32205Medium· 4.3A malicious server can serve excessive amounts of `Set-Cookie:` headers in a HTTP response to curl and curl < 7.84.0 stores all of them