CVE-2021-22925

Published Aug 5, 2021

Last updated 7 days ago

Overview

Description
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.
Source
support@hackerone.com
NVD status
Modified
Products
curl, fedora, cloud_backup, clustered_data_ontap, hci_management_node, solidfire, mac_os_x, macos, mysql_server, peoplesoft_enterprise_peopletools, sinec_infrastructure_network_services, sinema_remote_connect_server, h300s_firmware, h500s_firmware, h700s_firmware, h300e_firmware, h500e_firmware, h700e_firmware, h410s_firmware, universal_forwarder

Risk scores

CVSS 3.1

Type
Primary
Base score
5.3
Impact score
1.4
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
5
Impact score
2.9
Exploitability score
10
Vector string
AV:N/AC:L/Au:N/C:P/I:N/A:N

Weaknesses

support@hackerone.com
CWE-200
nvd@nist.gov
CWE-908

Social media

Hype score
Not currently trending

Configurations