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.
CVE-2021-22925
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2021-22925
https://github.com/curl/curl
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "n/a",
"product": "https://github.com/curl/curl",
"versions": [
{
"status": "affected",
"version": "curl 7.7 to and including 7.77.0"
}
]
}
]- Related CVEs
- CVE-2021-22925
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #21740 · Revision 1
- Added to Heist Feed
- Publisher date