{"id":"AZL-6359","summary":"CVE-2021-22898 affecting package curl for versions less than 7.76.0-5","details":"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.","modified":"2026-04-01T05:20:11.228004Z","published":"2021-06-11T16:15:11Z","upstream":["CVE-2021-22898"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22898"}],"affected":[{"package":{"name":"curl","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/curl"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.76.0-5"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-6359.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"}]}