CVE-2022-42915

 

Published at: - 29-10-2022 10:15

Last modified: - 26-01-2023 10:17

Total changes: - 8

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://curl.se/docs/CVE-2022-42915.html
• FEDORA-2022-01ffde372c-Mailing List, Third Party Advisory
• FEDORA-2022-39688a779d-Mailing List, Third Party Advisory
• FEDORA-2022-e9d65906c4-Mailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20221209-0010/
• GLSA-202212-01-Third Party Advisory
• https://support.apple.com/kb/HT213604
• https://support.apple.com/kb/HT213605
• 20230123 APPLE-SA-2023-01-23-4 macOS Ventura 13.2-
• 20230123 APPLE-SA-2023-01-23-5 macOS Monterey 12.6.3-

 

Keywords

NVD

 

CVE-2022-42915

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures