NetSight
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high8.1

CVE-2022-42915

curl before 7.86.0 has a double free.

Impact

curl before 7.86.0 has a double free. If curl is told to use an HTTP proxy for a transfer with a non-HTTP(S) URL, it sets up the connection to the remote server by issuing a CONNECT request to the proxy, and then tunnels the rest of the protocol through. An HTTP proxy might refuse this request (HTTP proxies often only allow outgoing connections to specific port numbers, like 443 for HTTPS) and instead return a non-200 status code to the client. Due to flaws in the error/cleanup handling, this could trigger a double free in curl if one of the following schemes were used in the URL for the transfer: dict, gopher, gophers, ldap, ldaps, rtmp, rtmps, or telnet. The earliest affected version is 7.77.0.

Affected products

VendorProductAffected versions
HaxxCurl
from 7.77.0 before 7.86.0
FedoraprojectFedora
Versions 35, 36, 37
NetappH300s Firmware
All versions
NetappH500s Firmware
All versions
NetappH700s Firmware
All versions
NetappH410s Firmware
All versions
NetappOntap 9
All versions
AppleMacos
from 12.0.0 before 12.6.3
from 13.0 before 13.2
SplunkUniversal Forwarder
from 8.2.0 before 8.2.12
from 9.0.0 before 9.0.6
Version 9.1.0

Weakness classification

CWE-415

References