Cleartext Transmission of Sensitive Information Affecting libcurl package, versions <0:7.88.0-1.amzn2.0.1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.14% (51st percentile)

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  • Snyk ID SNYK-AMZN2-LIBCURL-3343401
  • published 7 Mar 2023
  • disclosed 23 Feb 2023

How to fix?

Upgrade Amazon-Linux:2 libcurl to version 0:7.88.0-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2023-1986.

NVD Description

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

A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality fail when multiple URLs are requested serially. Using its HSTS support, curl can be instructed to use HTTPS instead of usingan insecure clear-text HTTP step even when HTTP is provided in the URL. ThisHSTS mechanism would however surprisingly be ignored by subsequent transferswhen done on the same command line because the state would not be properlycarried on.

CVSS Scores

version 3.1
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NVD

9.1 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None
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Red Hat

6.5 medium
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SUSE

7.4 high