CVE-2021-22925Medium· 5.3▾ Sunlitcurl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, lib…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 29.2 · likelihood 1 · 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
4.9%
curl supports the -t command line option, known as CURLOPT_TELNETOPTIONSin libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending NEW_ENV variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application.
curl >= 7.7, < 7.78.0fedora = 33cloud_backupclustered_data_ontaphci_management_nodesolidfiremac_os_x = 10.15.7macos = 11.0macos = 11.0.1macos = 11.1macos = 11.1.0macos = 11.2macos = 11.2.1macos = 11.3macos = 11.3.1macos = 11.4macos = 11.5mysql_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 < 1.0.1.1sinema_remote_connect_server < 3.1h300s_firmwareh500s_firmwareh700s_firmwareh300e_firmwareh500e_firmwareh700e_firmwareh410s_firmwareuniversal_forwarder >= 8.2.0, < 8.2.12universal_forwarder >= 9.0.0, < 9.0.6universal_forwarder = 9.1.0Upgrade past the affected range:
curl 7.78.0sinec_infrastructure_network_services 1.0.1.1sinema_remote_connect_server 3.1universal_forwarder 9.0.6Connected by shared product, vendor, weakness, or advisory.
CVE-2020-8169High· 7.5curl 7.62.0 through 7.70.0 is vulnerable to an information disclosure vulnerability that can lead to a partial password being leaked over the network and to the DNS server(s).
CVE-2021-22898Low· 3.1curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers
CVE-2020-8284Low· 3.7A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and n…
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-2021-22946High· 7.5A 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…
CVE-2021-22926High· 7.5libcurl-using applications can ask for a specific client certificate to be used in a transfer