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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2773-1 | curl security update |
Debian DLA |
DLA-3085-1 | curl security update |
Debian DSA |
DSA-5197-1 | curl security update |
Ubuntu USN |
USN-5079-1 | curl vulnerabilities |
Ubuntu USN |
USN-5079-2 | curl vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Status: PUBLISHED
Assigner: hackerone
Published:
Updated: 2024-08-03T18:58:26.135Z
Reserved: 2021-01-06T00:00:00
Link: CVE-2021-22946
No data.
Status : Modified
Published: 2021-09-29T20:15:08.187
Modified: 2024-11-21T05:50:59.587
Link: CVE-2021-22946
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
Ubuntu USN