CVE-2021-22924

Published Aug 5, 2021

Last updated 7 days ago

Overview

Description
libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate.
Source
support@hackerone.com
NVD status
Modified
Products
libcurl, fedora, debian_linux, cloud_backup, clustered_data_ontap, solidfire_\&_hci_management_node, solidfire_baseboard_management_controller_firmware, mysql_server, peoplesoft_enterprise_peopletools, sinec_infrastructure_network_services, sinema_remote_connect_server, logo\!_cmr2040_firmware, logo\!_cmr2020_firmware, ruggedcomrm_1224_lte_firmware, scalance_m804pb_firmware, scalance_m812-1_firmware, scalance_m816-1_firmware, scalance_m826-2_firmware, scalance_m874-2_firmware, scalance_m874-3_firmware, scalance_m876-3_firmware, scalance_m876-4_firmware, scalance_mum856-1_firmware, scalance_s615_firmware, simatic_cp_1543-1_firmware, simatic_cp_1545-1_firmware, simatic_rtu3010c_firmware, simatic_rtu3030c_firmware, simatic_rtu3031c_firmware, simatic_rtu_3041c_firmware, sinema_remote_connect, siplus_net_cp_1543-1_firmware, universal_forwarder

Risk scores

CVSS 3.1

Type
Primary
Base score
3.7
Impact score
1.4
Exploitability score
2.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Severity
LOW

CVSS 2.0

Type
Primary
Base score
4.3
Impact score
2.9
Exploitability score
8.6
Vector string
AV:N/AC:M/Au:N/C:P/I:N/A:N

Weaknesses

support@hackerone.com
CWE-20
nvd@nist.gov
CWE-706

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.