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Information Exposure Affecting libcurl-devel package, versions <0:7.76.1-4.amzn2.0.1

Severity

 Recommended
medium

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.12% (46th percentile)

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  • Snyk ID SNYK-AMZN2-LIBCURLDEVEL-1702480
  • published 27 Sep 2021
  • disclosed 14 Dec 2020
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Introduced: 14 Dec 2020

CVE-2020-8284 Open this link in a new tab
CWE-200 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 libcurl-devel to version 0:7.76.1-4.amzn2.0.1 or higher.
This issue was patched in ALAS2-2021-1693.

NVD Description

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

A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions.

References

CVSS Scores

version 3.1
Expand this section

NVD

3.7 low
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    None
  • Availability (A)
    None
Expand this section

Red Hat

3.1 low
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SUSE

4.3 medium