CURL-CVE-2021-22946
See a problem?- Source
- https://curl.se/docs/CVE-2021-22946.html
- Import Source
- https://curl.se/docs/CURL-CVE-2021-22946.json
- JSON Data
- https://api.osv.dev/v1/vulns/CURL-CVE-2021-22946
- Aliases
- Published
- 2021-09-15T08:00:00Z
- Modified
- 2024-06-07T13:53:51Z
- Summary
- Protocol downgrade required TLS bypassed
- Details
-
A user can tell curl to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (
--ssl-reqdon the command line orCURLOPT_USE_SSLset toCURLUSESSL_CONTROLorCURLUSESSL_ALLwith libcurl). 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 without TLS contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network.
- References
-
- Credits
-
-
- Patrick Monnerat - FINDER
-
- Patrick Monnerat - REMEDIATION_DEVELOPER
-
Affected packages
Git / github.com/curl/curl.git
Affected ranges
- Type
- SEMVER
- Events
-
Introduced7.20.0Fixed7.79.0
- Type
- GIT
- Repo
- https://github.com/curl/curl.git
- Events
Affected versions
7.*
7.20.0
7.20.1
7.21.0
7.21.1
7.21.2
7.21.3
7.21.4
7.21.5
7.21.6
7.21.7
7.22.0
7.23.0
7.23.1
7.24.0
7.25.0
7.26.0
7.27.0
7.28.0
7.28.1
7.29.0
7.30.0
7.31.0
7.32.0
7.33.0
7.34.0
7.35.0
7.36.0
7.37.0
7.37.1
7.38.0
7.39.0
7.40.0
7.41.0
7.42.0
7.42.1
7.43.0
7.44.0
7.45.0
7.46.0
7.47.0
7.47.1
7.48.0
7.49.0
7.49.1
7.50.0
7.50.1
7.50.2
7.50.3
7.51.0
7.52.0
7.52.1
7.53.0
7.53.1
7.54.0
7.54.1
7.55.0
7.55.1
7.56.0
7.56.1
7.57.0
7.58.0
7.59.0
7.60.0
7.61.0
7.61.1
7.62.0
7.63.0
7.64.0
7.64.1
7.65.0
7.65.1
7.65.2
7.65.3
7.66.0
7.67.0
7.68.0
7.69.0
7.69.1
7.70.0
7.71.0
7.71.1
7.72.0
7.73.0
7.74.0
7.75.0
7.76.0
7.76.1
7.77.0
7.78.0