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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: hackerone
Published: 2021-08-05T00:00:00
Updated: 2024-08-03T18:58:26.060Z
Reserved: 2021-01-06T00:00:00
Link: CVE-2021-22925
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2021-08-05T21:15:11.467
Modified: 2024-03-27T15:11:42.063
Link: CVE-2021-22925
Redhat