Red Hat: CVE-2021-22946: Requirement to use TLS not properly enforced for IMAP, POP3, and FTP protocols (Multiple Advisories)
Description
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.
Solution(s)
- redhat-upgrade-curl
- redhat-upgrade-curl-debuginfo
- redhat-upgrade-curl-debugsource
- redhat-upgrade-curl-minimal-debuginfo
- redhat-upgrade-libcurl
- redhat-upgrade-libcurl-debuginfo
- redhat-upgrade-libcurl-devel
- redhat-upgrade-libcurl-minimal
- redhat-upgrade-libcurl-minimal-debuginfo
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