CVE-2021-22946

 

Published at: - 29-09-2021 10:15

Last modified: - 02-09-2022 03:40

Total changes: - 19

Description

A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://hackerone.com/reports/1334111
• [debian-lts-announce] 20210930 [SECURITY] [DLA 2773-1] curl security update-Mailing List, Third Party Advisory
• FEDORA-2021-fc96a3a749-Mailing List, Third Party Advisory
• https://www.oracle.com/security-alerts/cpuoct2021.html
• https://security.netapp.com/advisory/ntap-20211029-0003/
• FEDORA-2021-1d24845e93-Mailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20220121-0008/
• https://www.oracle.com/security-alerts/cpujan2022.html
• https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
• https://support.apple.com/kb/HT213183
• 20220314 APPLE-SA-2022-03-14-4 macOS Monterey 12.3-Mailing List, Third Party Advisory
• https://www.oracle.com/security-alerts/cpuapr2022.html
• N/A-
• DSA-5197-
• [debian-lts-announce] 20220828 [SECURITY] [DLA 3085-1] curl security update-

 

Keywords

NVD

 

CVE-2021-22946

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures