CVE-2021-22925 (GCVE-0-2021-22925)
Vulnerability from cvelistv5
Published
2021-08-05 00:00
Modified
2026-04-16 16:36
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-200 - Information Disclosure ()
Summary
curl 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, 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.
References
Impacted products
Vendor Product Version
n/a https://github.com/curl/curl Version: curl 7.7 to and including 7.77.0
Show details on NVD website

To clipboard 

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