CVE-2021-22898
Severity
3.1LOW
EPSS
0.1%
top 68.19%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 11
Latest updateFeb 27
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:NExploitability: 1.6 | Impact: 1.4
Affected Packages13 packages
Also affects: Debian Linux 9.0, Fedora 33, 34
Patches
🔴Vulnerability Details
6📋Vendor Advisories
7Microsoft▶
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. D↗2021-06-08