cve/2021/CVE-2021-22898.md

CVE-2021-22898

Description

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.

POC

Reference

• https://curl.se/docs/CVE-2021-22898.html
• https://www.oracle.com//security-alerts/cpujul2021.html
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://www.oracle.com/security-alerts/cpujan2022.html

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/devopstales/trivy-operator
• https://github.com/falk-werner/cve-check
• https://github.com/fokypoky/places-list
• https://github.com/kenlavbah/log4jnotes
• https://github.com/n0-traces/cve_monitor