vulnerability
Arch Linux: Information disclosure (CVE-2021-22898)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 3 | (AV:N/AC:H/Au:N/C:P/I:N/A:N) | Jun 11, 2021 | Jul 11, 2025 | Nov 27, 2025 |
Severity
3
CVSS
(AV:N/AC:H/Au:N/C:P/I:N/A:N)
Published
Jun 11, 2021
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
A security issue has been found in curl before version 7.77.0. curl supports the -t command line option, known as CURLOPT_TELNETOPTIONS in libcurl. This rarely used option is used to send variable=content pairs to TELNET servers. Due to flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server. Therefore potentially revealing sensitive internal information to the server using a clear-text network protocol.
Solution
arch-linux-upgrade-latest
References
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