Detections
Analytics
CVE-2021-22925
medium
Description
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.
References
https://www.oracle.com/security-alerts/cpuoct2021.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://support.apple.com/kb/HT212805
https://support.apple.com/kb/HT212804
https://security.netapp.com/advisory/ntap-20210902-0003/
https://security.gentoo.org/glsa/202212-01
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf