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Missing Initialization of Resource

CVE-2021-22898

Severity Low
Score 3.1/10

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.

Advisory Timeline

  • Published