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Use of Uninitialized Resource The advisory has been revoked - it doesn't affect any version of package curl  (opens in a new tab)

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  • Snyk IDSNYK-RHEL10-CURL-9895238
  • published29 Apr 2025
  • disclosed21 Jul 2021
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Introduced: 21 Jul 2021

CVE-2021-22925  (opens in a new tab)
CWE-908  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by RHEL.

curl supports the -t command line option, known as CURLOPT_TELNETOPTIONSin 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