Missing Initialization of Resource
CVE-2021-22898
Summary
curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a 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, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol.
- HIGH
- NETWORK
- NONE
- UNCHANGED
- REQUIRED
- NONE
- LOW
- NONE
CWE-909 - Missing Initialization of Resource
The software does not initialize a critical resource.
References
Advisory Timeline
- Published