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Cleartext Transmission of Sensitive Information Affecting curl package, versions <0:7.79.1-7.amzn2.0.1

medium

Snyk CVSS

    Attack Complexity Low
    Confidentiality High

    Threat Intelligence

    EPSS 0.2% (57th percentile)
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NVD
7.5 high
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SUSE
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-AMZN2-CURL-3159967
  • published 7 Dec 2022
  • disclosed 29 Oct 2022
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Introduced: 29 Oct 2022

CVE-2022-42916 Open this link in a new tab
CWE-319 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 curl to version 0:7.79.1-7.amzn2.0.1 or higher.
This issue was patched in ALAS2-2022-1882.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

In curl before 7.86.0, the HSTS check could be bypassed to trick it into staying with HTTP. Using its HSTS support, curl can be instructed to use HTTPS directly (instead of using an insecure cleartext HTTP step) even when HTTP is provided in the URL. This mechanism could be bypassed if the host name in the given URL uses IDN characters that get replaced with ASCII counterparts as part of the IDN conversion, e.g., using the character UTF-8 U+3002 (IDEOGRAPHIC FULL STOP) instead of the common ASCII full stop of U+002E (.). The earliest affected version is 7.77.0 2021-05-26.

References