Cleartext Transmission of Sensitive Information Affecting curl package, versions <7.74.0-1.3+deb11u2
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- Snyk ID SNYK-DEBIAN11-CURL-1585138
- published 15 Sep 2021
- disclosed 29 Sep 2021
How to fix?
curl to version 7.74.0-1.3+deb11u2 or higher.
Note: Versions mentioned in the description apply only to the upstream
curl package and not the
curl package as distributed by
How to fix? for
Debian:11 relevant fixed versions and status.
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_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.