Improper Enforcement of Message Integrity During Transmission in a Communication Channel Affecting libcurl package, versions <0:7.79.1-6.amzn2.0.1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.3% (70th percentile)

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  • Snyk ID SNYK-AMZN2-LIBCURL-3110079
  • published 9 Nov 2022
  • disclosed 7 Jul 2022

How to fix?

Upgrade Amazon-Linux:2 libcurl to version 0:7.79.1-6.amzn2.0.1 or higher.
This issue was patched in ALAS2-2022-1875.

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.

When curl < 7.84.0 does FTP transfers secured by krb5, it handles message verification failures wrongly. This flaw makes it possible for a Man-In-The-Middle attack to go unnoticed and even allows it to inject data to the client.

CVSS Scores

version 3.1
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NVD

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

5.3 medium
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SUSE

6.6 medium