CVE-2021-22925
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.
- Affected products
- Alt Linux, Almalinux, Astra Linux, Centos, Linuxmint, Apple Macos, Red Hat, Red Os
- Haxx Curl
- < 7.78.0
- CVSS 3.1
- 5.3 MEDIUM
- EPSS
- 4.9% (91th percentile)
- Weakness
- CWE-200, CWE-908
- NVD status
- Modified
- Published
- 2021-08-05
No indexed exploits for CVE-2021-22925 yet
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No exploit for CVE-2021-22925 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.